ERouting Curriculum Errata

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Course Version

Page

Language

Error Type

CCNA Exploration: Routing Protocols and Concepts

4.0.5.0

1.2.1.2

English

Packet Tracer


4.0.5.0

1.4.1.2

English

Chapter Text


4.0.5.0

1.4.1.2

English

Chapter Text


4.0.5.0

1.4.5.3

English

Chapter Text


4.0.5.0

1.5.3.2

English

Packet Tracer


4.0.5.0

2.3.2.2

English

Chapter Text


4.0.5.0

2.7.1.1

English

Chapter Text


4.0.5.0

2.8.1.1

English

Lab


4.0.5.0

2.8.2.2

English

Packet Tracer


4.0.5.0

3.2.3.1

English

Flash Media


4.0.5.0

3.4.4.2

English

Packet Tracer


4.0.5.0

3.5.2.1

English

Lab


4.0.5.0

3.5.2.2

English

Packet Tracer


4.0.5.0

3.5.3.1

English

Lab


4.0.5.0

3.5.3.1

English

Lab


4.0.5.0

3.5.3.1

English

Lab


4.0.5.0

3.5.3.2

English

Chapter Text


4.0.5.0

3.5.3.2

English

Packet Tracer


4.0.5.0

3.5.4.1

English

Lab


4.0.5.0

3.6.1.3

English

Packet Tracer


4.0.5.0

3.6.1.3

English

Packet Tracer


4.0.5.0

3.6.1.3

English

Packet Tracer


4.0.5.0

4.2.2.1

English

Flash Media


4.0.5.0

4.4.1.1

English

Flash Media


4.0.5.0

4.4.1.1

English

Glossary


4.0.5.0

4.4.1.1

English

Glossary


4.0.5.0

4.4.4.1

English

Chapter Text


4.0.5.0

5.5.2.1

English

Flash Media


4.0.5.0

5.6.1.1

English

Lab


4.0.5.0

5.6.1.2

English

Lab


4.0.5.0

5.6.3.1

English

Lab


4.0.5.0

5.7.1.3

English

Packet Tracer


4.0.5.0

6.4.2.1

English

Lab


4.0.5.0

6.4.2.2

English

Packet Tracer


4.0.5.0

6.4.2.2

English

Packet Tracer 5.1


4.0.5.0

6.4.2.2

English

Packet Tracer 5.1


4.0.5.0

6.4.2.2

English

Packet Tracer 5.1


4.0.5.0

6.4.2.2

English

Packet Tracer 5.1


4.0.5.0

6.4.2.2

English

Packet Tracer 5.1


4.0.5.0

6.4.2.2

English

Packet Tracer 5.1


4.0.5.0

6.4.2.2

English

Packet Tracer 5.1


4.0.5.0

6.4.2.2

English

Packet Tracer 5.1


4.0.5.0

6.4.2.2

English

Packet Tracer 5.1


4.0.5.0

6.4.2.2

English

Packet Tracer 5.1


4.0.5.0

6.4.2.2

English

Packet Tracer 5.1


4.0.5.0

7.4.3.2

English

Packet Tracer


4.0.5.0

7.6.1.2

English

Flash Media


4.0.5.0

7.6.1.2

English

Flash Media


4.0.5.0

7.6.1.3

English

Packet Tracer


4.0.5.0

7.6.1.3

English

Packet Tracer


4.0.5.0

8.1.2.1

English

Flash Media


4.0.5.0

8.4.1.1

English

Lab


4.0.5.0

8.4.1.1

English

Lab


4.0.5.0

8.4.1.1

English

Lab


4.0.5.0

8.6.1.1

English

Quiz


4.0.5.0

9.4.4.2

English

Chapter Text


4.0.5.0

9.4.5.1

English

Chapter Text


4.0.5.0

9.5.2.2

English

Text


4.0.5.0

9.6.2.1

English

Lab


4.0.5.0

9.6.2.1

English

Lab


4.0.5.0

9.6.2.1

English

Lab


4.0.5.0

9.7.1.3

English

Packet Tracer


4.0.5.0

9.7.1.3

English

Packet Tracer


4.0.5.0

10.1.9.1

English

Chapter Text


4.0.5.0

10.3.1.3

English

Packet Tracer


4.0.5.0

11.7.1.3

English

Packet Tracer


4.0.5.0

11.7.1.3

English

Packet Tracer


4.0.5.0

all

English

Packet Tracer 5.1


4.0.5.0

All chapters

English

PT


4.0.5.0

All chapters

English

PT-SBA


4.0.5.0

All chapters

English

Grammar

To view the version of a course, click the "About" link located at the bottom of a course page. Error

Task 1, step 1, item 4 has a incorrect router name.

Third and fourth bullet field names are reversed.

The number of bytes should be changed to reflect the text expression for the number of bytes less than 10, the 6 bytes references to MAC addresses should remain as numbers, but should be hyphenated.

First paragraph (item 1), second sentence is referring to the incorrect router R1.

In the instructions, Task 1 Step 3 says to "assign the first subnet (lowest subnet)to the network attached to R1". The scenario at the start of the activity has a note: "Note: Use classful subnetting for this lab." Add an additional instruction here t

The first sentence is not referring to the correct router.

Step 8 has an incorrect interface number

Instructor answer key, Task 14, question 3. MAC address for R3 and PC3 are switched around in asnwer.

The IP address of the web server is incorrect in the addressing table in the PDF. It should match the one in PT.

Text between R1 and R3. Not all distance vector protocols pass the entire routing table.

The configurations for the routers are not saved to nvram so that if the student should (optionally) decide to reload the routers, the configuraitons are lost. The commands covered in the activity are also asked to be executed on only the ISP router. The commands should be executred on all three routers and the routing information can then be compared to ehance the usefulness of the activity.

Task 2, Step 1. Instructions do not indicate the method that should be used for subnettings this lab.


Student and instructor, all lab files. Task 5: Reflection. Question set 6. Incorrect interface listed for West router.

Student and instructor, all lab files. Task 5: Reflection. Question set 7. Incorrect interface listed for East router.


Lab 3.5.3.1 .pdf file is not needed to complete the Packet Tracer activity 3.5.3.2. All instructions ar provided in the activity. Also the lab instructions use a different interface numbering method then the Packet Tracer activity which may cause confusion.


All PDF file and doc files. Scenario HQ host requirements. Lab does not work with or without VLSM

All static routers are not summarize to include all bits that are common.

The ISP router WAN link for HQ to branches should be summarized.

PDF file and PT instructions, Task 3, third bullet. Incorrect number of static routes listed for ISP

As the first half of the animation plays, the Hop count for each update, when highlighted in yellow, should be zero and not one. When the hop count changes to a orange highlight it should then change from zero to one.

The first update for router R3 does not change the information in the routing table as provided by the update. The hop count stays at 0 when the update shows 2.

Route poisoning includes the definition for poison reverse

Poison reverse includes the definition for route poisoning

Due to a bug in certian versions of the router IOS, you may see differnt results for the RIP holddown timer than expected from the description in the curriculum.

Click topology button. Incorrect IP addresses in diagram for interfaces: R1 - Fa0/0 network and R2 - Fa0/0 network.

Scenario C, Task 2, step 1. Incorrect subnet in last sentence.

For Scenario A. The PT will not grade fully without the following information.

All PDF file and doc files. Task 2 step 2. In the HQ router script the incorrect interface assigned as passive.

All instruction Passive-interface s0/1/1 on R1 and R2 connects to ISP. The network address is not entered, so the passive-interface command is unnecessary.

There are several errors in the instructor lab manual.

PT answer key has incorrect ip address. On router HQ, interface S0/0/1.

PT instructions page 1. Only the NOTE TO USER text should be red. All other instructions should be black.

PT instructions page 1, West Network Section. Northwest Branch1 LAN2 and LAN 1 incorrect order.

PT instructions page 4. Task 3, Step 3 and 4 have incorrect subnet order listed.

PT instructions page 5, Task 4. Only the NOTE TO USER text should be red. All other instructions should be black.

PT instructions page 6. Taks 5, Step 13, 14, 15, 16 and 17 have incorrect subnet order listed.

PT instructions page 7. Taks 6, Step 9, 10 and 11 have incorrect subnet order listed.

PT answer key has incorrect ip address. On router Central, interface S0/0/0.

PT answer key has incorrect mask. On router NW BR1 interface F0/0.

PT answer key has incorrect ip address and mask. On router NW BR1 interface F0/1.

PT answer key has incorrect ip address. On router NW BR2 interface F0/0.

PT answer key has incorrect ip address. On router NW BR2 interface F0/1.

PT instructions only show introduction and ip address table.

Chapter summary. There are two question 11s.

The second question 11 instruction, second sentence, should not have auto-summary disabled.

PT instructions Task 5, Step 1, and doc and PDF file Task 4 Step 1. Incorrect instruction for configuring RIP.

PT instructions Task 5, Step 1, and doc and PDF file Task 4 Step 1. Incorrect instruction for configuring default route between HQ and ISP.

Fifth line in the media text box is indented to much.

With the newer IOSs the no ip classless command is not working as expected in the lab if ip cef is configured on the router.

Scenario B, original Task 1 and Task 2 are incorrect. The new Task 1 is displayed here: IMPORTANT: You must double click on the new Task 1 item (cell) so you can view all of the chages. Then use the down arrow, key on your key board, to scroll through all the steps in the Task.

Scenario B, original Task 3 is now the Task 2 and is displayed here. IMPORTANT: You must double click on the new Task 2 item (cell) so you can view all of the chages. Then use the down arrow, key on your key board, to scroll through all the steps in the Task.

End of Chapter Quiz (the one inside the curriculum) Question 1. Incorrect format, addressing in router output.

Change: P - This route is in the passive state. When DUAL is not performing its diffusing computations to determine a path for a network, the route will be in a stable mode, known as the passive state. If DUAL is recalculating or searching for a new path, the route will be in an active state and will display an A. All routes in the topology table should be in the passive state for a stable routing domain. DUAL will display a s flag if the route is "Stuck in Active," which is a CCNPlevel troubleshooting issue.

Last paragraph, second sentence. Incorrect router name shown.

Third paragraph, third sentence. Incorrect unit for bandwidth.

Task 7, EIGRP is typed incorrectly twice.



PDF file and PT instructions, Task 6, Step 2. Instructs the student to adjust the hello-interval, but no instruction to change the hold-time. Hold-time command is not available in this currect PT version.

All student and instructor files. Both .pdf file (Task 6, step 2) and PT (Task 5, step 2) instructions. PT v5.3 or older do not support the holdtime command. Because of this, when the hello-interval is changed , holding times expire.

Below heading: Click R4 LSPs in the figure. Sixth paragraph, second sentence has an incorrect IP address.

PT instructions, Task 1, Step 1, fourth bullet. Incorrect IP address provided for Region 1 WAN subnets.

For routers R2 - R6 passive interface is not marked properly in the activity. When passive interface is configured on these routers and on the correct port, they are marked incorrect and marks are subtracted form the PT score.

In all instructor files (doc and pdf) the topology has incorrect subnet information marked for several networks.

Changing hardware name unlocks all locked access. Also show link lights when locked.

PT v5.3 crashes when attempting to open activities that were saved using PT v5.2. If an activity is saved in PT v5.2, then it must be opened in PT v5.2. Activities saved in PT v5.3 should be opened in PT v5.3

When submitting the PT-SBA, the instructor is receiving an error message "An error occurred while transmitting your scoring information to Academy Connection. All your work and scoring results are saved. However, it may require administrative action to record your score and other assessment information in the gradebook. If your results do not appear in the gradebook, ask your instructor to contact the Global Support Desk. Message ID: XP-SUB-002" and the grade is not posting to the gradebook. When attempting to re-enable the PT-SBA, the instructor is receiving the same error message.

Some grammatical errors such as missing commas and missing spaces has been found in the curriculum.

ocated at the bottom of a course page. Correction

Prod Date

Change: Connect the FastEthernet0/0 port on Router0 to the FastEthernet port on PC01. TBD To: Connect the FastEthernet0/0 port on Router1 to the FastEthernet port on PC01.

Change: Destination address - 6 byte MAC address of the sending device on the local segment Source address - 6 byte MAC address of the receiving device on the local segment To: Source address - 6 byte MAC address of the sending device on the local segment Destination address - 6 byte MAC address of the receiving device on the local segment

Change: • Start-of-frame (SOF) delimiter - 1 byte signaling the beginning of the frame • Destination address - 6 byte MAC address of the sending device on the local segment • Source address - 6 byte MAC address of the receiving device on the local segment • Type/length - 2 bytes specifying either the type of upper layer protocol (Ethernet II frame format) or the length of the data field (IEEE 802.3 frame format) • Frame check sequence (FCS) - 4 bytes used for a cyclical redundancy check to make sure the frame is not corruptedThe syntax of the message: this gives the expected order of information (fields) in a message. To: • Start-of-frame (SOF) delimiter - One byte signaling the beginning of the frame • Destination address - 6-byte MAC address of the receiving device on the local segment • Source address - 6-byte MAC address of the sending device on the local segment • Type/length - Two bytes specifying either the type of upper layer protocol (Ethernet II frame format) or the length of the data field (IEEE 802.3 frame format) • Frame check sequence (FCS) - Four bytes used for a cyclical redundancy check to make sure the frame is not corruptedThe syntax of the message: this gives the expected order of information (fields) in a message.

TBD

TBD

Change: R1 will therefore copy the frame into its buffer. TBD To: R2 will therefore copy the frame into its buffer.

To prevent confusion and having students use subnet zero, add the following to the note in the Scenario: Note: Use classful subnetting for this lab. Subnet zero is not used.

TBD

Remove the incorrectly labeled networks from the activity in the answer netwo Change: The first route in the table for R1 is 172.16.1.0/24. TBD To: The first route in the table for R2 is 172.16.1.0/24. Change: 8. R3 decapsulates the frame and looks for a route to the destination. R3 has a connected route to 192.168.2.0/24 out FastEthernet 0/1.

TBD

To: 8. R3 decapsulates the frame and looks for a route to the destination. R3 has a connected route to 192.168.2.0/24 out FastEthernet 0/0. Change: PC3 then frames the packet with the source MAC address of (indicate device name) ___R3_____ and the destination MAC address of (indicate device name) ______PC3________. To: PC3 then frames the packet with the source MAC address of (indicate device name) ___PC3_____ and the destination MAC address of (indicate device name) ______R3________.

TBD

Change the IP address from: "209.165.200.253" To: "209.165.200.254"

TBD

Change: Distance vector protocols periodically pass the entire routing table. TBD To: Some distance vector protocols periodically pass the entire routing table.

Save the configurations of all three routers to nvram instead of just having the ISP router with saved configuration to nvram. Change the instructions so that the commands are executed on all three routers.

TBD

Change: Step 1: Subnet the 192.168.9.0 network into the appropriate number of subnets. TBD To: Step 1: Using classful subneting to subnet the 192.168.9.0 network into the appropriate number of subnets. Change: Step 1: Subnet the 192.168.9.0 network into the appropriate number of subnets. TBD To: Step 1: Using classful subneting to subnet the 192.168.9.0 network into the appropriate number of subnets. Change: What would be the command used to add this summary route to the routing table? Use the S0/0/1 interface of the West router as the exit interface. TBD To: What would be the command used to add this summary route to the routing table? Use the S0/0/0 interface of the West router as the exit interface. Change: What would be the command used to add this summary route to the routing table? Use the S0/0/1 interface of the East router as the exit interface. TBD To: What would be the command used to add this summary route to the routing table? Use the S0/0/0 interface of the East router as the exit interface. Change: Step 1: Subnet the 172.16.0.0 network based on the maximum number of hosts required by the largest subnet. To: Step 1: Using classful subneting to subnet the 172.16.0.0 network based on the maximum number of hosts required by the largest subnet..

TBD

Change: Use this Packet Tracer Activity to implement your addressing scheme. A summary of the instructions are provided within the activity. Use the Lab PDF for more details.

TBD

To: Use this Packet Tracer Activity to implement your addressing scheme.

Change: Step 1: Subnet the 172.16.0.0 network into the appropriate number of subnets. (Remember to allow for the maximum number of hosts required for the largest subnet.) To: Step 1: Using classful subneting to subnet the 172.16.0.0 network into the appropriate number of subnets. (Remember to allow for the maximum number of hosts required for the largest subnet.)

TBD

Change: The HQ LAN will require 70 host IP addresses. TBD To: The HQ LAN will require 60 host IP addresses.

The subnets on B2 are: 172.16.0.0/22 172.16.4.0/22 172.16.8.0/22 172.16.12.0/22 The summary route on HQ for these routes should be 172.16.0.0/20 not 172.16.0.0/16 The subnets on B3 are: 172.20.0.0/19 172.20.32.0/19 172.20.64.0/19 172.20.96.0/19 The summary route on HQ for these routes should be 172.20.0.0/17 not 172.20.0.0/16 The ISP router all summaries are wrong and, in addition, the summary route to the HQ LAN is entered as 192.168.0.128/25, but it should be 192.168.0.128/26.

TBD

Current Static route listed for ISP router. Change: 10.0.0.0/30 10.0.0.4/30 10.0.0.8/30 192.168.0.128/26 192.168.1.0/24 172.16.0.0/20 172.20.0.0/17

TBD

To: 10.0.0.0/28 192.168.0.128/26 192.168.1.0/24 172.16.0.0/20 172.20.0.0/17

Change: ISP should have seven static routes. This will include the three WAN links between HQ and the branch routers B1, B2, and B3. To: ISP should have five static routes. This will include the one for the three WAN links between HQ and the branch routers B1, B2, and B3.

TBD

When hop count is highlighted in yellow. For router R1 Change: 10.1.0.0 1 To: 10.1.0.0 0 Change: 10.2.0.0 To: 10.2.0.0 0 For router R2 Change: 10.2.0.0 To: 10.2.0.0 0 Change: 10.3.0.0 To: 10.3.0.0 0 For router R3 Change: 10.3.0.0 To: 10.3.0.0 0 Change: 10.4.0.0 To: 10.4.0.0 0

1

1 1

1 1

TBD

When hop count is highlighted in orange. For router R1 Change: 10.1.0.0 0 To: 10.1.0.0 1 Change: 10.2.0.0 To: 10.2.0.0 1 For router R2 Change: 10.2.0.0 To: 10.2.0.0 1 Change: 10.3.0.0 To: 10.3.0.0 1 For router R3 Change: 10.3.0.0

0

0 0

0

After the first update: Change: 10.4.0.0 Fa0/0 0 To: 10.4.0.0 S0/0/1 2

Change: Routing updates that explicitly indicate that a network or subnet is unreachable, rather than implying that a network is unreachable by not including it in updates. Poison reverse updates are sent to defeat large routing loops. The Cisco IGRP implementation uses poison reverse updates. To: Routing updates that explicitly indicate that a network or a subnet is unreachable, rather than implying that a network is unreachable by not including it in updates.

TBD

TBD

Change: Routing updates that explicitly indicate that a network or subnet is unreachable, rather than implying that a network is unreachable by not including it in updates. Poison reverse updates are sent to defeat large routing loops. The Cisco IGRP implementation uses poison reverse updates.

TBD

To: Poison reverse updates are sent out the interface they are learned on to defeat large routing loops. The Cisco EIGRP implementation uses poison reverse updates.

The Cisco technical team is working to correct this issue with the IOS.

Change: 172.168..3.0/24 and 172.168.1.0/24 To; 172.30.3.0/24 and 172.30.1.0/24

TBD

TBD

Change: This will send all 172.30.0.0/16 traffic to R2. TBD To: This will send all 172.30.0.0/22 traffic to R2.

Connect R1, R2 and R3 to switch port FastEthernet0/1. Name each switch: R1 LAN, R2 LAN and R3 LAN.

TBD

Change: router rip passive-interface FastEthernet0/0 network 10.0.0.0 TBD To: router rip passive-interface Serial0/0/0 network 10.0.0.0

Remove this passive-interface command from interface s0/1/1 on R1 and R2 connecting to ISP.

TBD

In the topology diagram, it lists the East Region's address as 172.16.1.0/18 change to 172.16.0.0/18. In task one, step 7 lists the number of addresses needed as 10410. Change to 14,010.

TBD

Change: IP Address: 172.16.63.1 TBD To: IP Address: 172.16.176.1

Red text NOTE TO USER: Do not configure the routers until you reach Task 7.

TBD

All other text on page one should be black.

Change: The NW-BR1 (Northwest Branch1) LAN2 will require 2000 host IP addresses. The NW-BR1 (Northwest Branch1) LAN1 will require 2000 host IP addresses. To: The NW-BR1 (Northwest Branch1) LAN1 will require 2000 host IP addresses. The NW-BR1 (Northwest Branch1) LAN2 will require 2000 host IP addresses.

TBD

Change: Step 3. Assign the first subnet to the WAN link from HQ to EAST. Step 4. Assign the first subnet to the WAN link from HQ to WEST. To: Step 3. Assign the second subnet to the WAN link from HQ to EAST. Step 4. Assign the third subnet to the WAN link from HQ to WEST.

Red text NOTE TO USER: There is no need to calculate for future growth of the networks in this activity. All other text on page one should be black.

TBD

TBD

Change: Step 13. Step 14. Step 15. Step 16. Step 17. To: Step Step Step Step Step

Assign Assign Assign Assign Assign

the the the the the

first first first first first

subnet subnet subnet subnet subnet

to to to to to

the the the the the

WAN WAN WAN WAN WAN

link link link link link

from from from from from

EAST to SE. SE to SE-BR1. SE to SE-BR2. SE-BR2 to SE-ST1. SE-BR2 to SE-ST2. TBD

13. 14. 15. 16. 17.

Assign Assign Assign Assign Assign

the the the the the

second subnet to the WAN link from EAST to SE. third subnet to the WAN link from SE to SE-BR1. fourth subnet to the WAN link from SE to SE-BR2. fifth subnet to the WAN link from SE-BR2 to SE-ST1. sixth subnet to the WAN link from SE-BR2 to SE-ST2.

Change: Step 9. Assign the first subnet to the WAN link from WEST to NW. Step 10. Assign the first subnet to the WAN link from NW to NW-BR1. Step 11. Assign the first subnet to the WAN link from NW to NW-BR2. To: Step 9. Assign the second subnet to the WAN link from WEST to NW. Step 10. Assign the third subnet to the WAN link from NW to NW-BR1. Step 11. Assign the fourth subnet to the WAN link from NW to NW-BR2.

TBD

Change: 172.16.176.2/30 To: 172.16.63.2/30

TBD

Change: /22 To: /21

TBD

Change:172.16.228.1/22 To: 172.16.232.1/21

TBD

Change:172.16.232.1/24 To: 172.16.240.1/24

TBD

Change:172.16.236.1/24 To: 172.16.241.1/24

TBD

Add , instruction and configuration steps to PT instruction document.

TBD

Change sthe second question 11 To: 12

TBD

Change: If router R1 has automatic summarization disabled (no autosummary), will R2 be … To: If router R1 is configured with the default for auto-summary, will R2 be …

TBD

Change: Configure all devices with RIPv2 routing. TBD To: Configure HQ and Branch routers with RIPv2 routing.

Change: Set a default route from HQ to ISP using the next-hop IP address.

TBD

To: Set a default route from HQ to ISP using the outbound interface.

Change: 10.0.0.0/16 is subnetted, 1 subnets S 10.1.0.0 is directly connected, Serial0/0/1 TBD To: S

10.0.0.0/16 is subnetted, 1 subnets 10.1.0.0 is directly connected, Serial0/0/1

In Task 2, Step 1, Add a note adivisng the students to disable ip cef on each router. Note: With newer versions of the router IOS, the no ip classless command may be ineffective. To ensure that the routers function as expected, disable ip cef by entering the no ip cef command on each router.

TBD

R2(config)#router rip R2(config-router)#default-information originate Step 3: Examine the routing table on the R2 router. R2#show ip route Gateway of last resort is 0.0.0.0 to network 0.0.0.0 172.16.0.0/24 is subnetted, 4 subnets R 172.16.1.0 [120/1] via 172.16.2.1, 00:00:00, Serial0/0/0 C 172.16.2.0 is directly connected, Serial0/0/0 C 172.16.3.0 is directly connected, FastEthernet0/0 C 192.168.1.0/24 is directly connected, Serial0/0/1 S* 0.0.0.0/0 is directly connected, Serial0/0/1 R2# Step 4: Ping from R2 to PC3 and observe the results. R2#ping 172.16.4.10 TBD Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.4.10, timeout is 2 seconds: ..... Success rate is 0 percent (0/5 ) The ping is unsuccessful because the router is using classful routing behavior. The route lookup process on the R2 router searches the routing table and finds that the first 16 bits of the destination address are a match with the parent route 172.16.0.0/16. Since the destination address matches the parent route, the child routes are checked. What are the child routes of the 172.16.0.0/16 parent network? ____________________________________________________ ____________________________________________________ ____________________________________________________

R C C C S* R2#

172.16.0.0/24 is subnetted, 4 subnets 172.16.1.0 [120/1] via 172.16.2.1, 00:00:00, Serial0/0/0 172.16.2.0 is directly connected, Serial0/0/0 172.16.3.0 is directly connected, FastEthernet0/0 192.168.1.0/24 is directly connected, Serial0/0/1 0.0.0.0/0 is directly connected, Serial0/0/1

Step 3: Repeat the ping from R2 to PC3 and observe results. R2#ping 172.16.4.10 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.4.10, timeout is 2 seconds: !!!!! Success rate is 100 percent, round-trip min/avg/max = 28/28/28 ms The ping is successful this time because the router is using classless routing behavior. The destination address of the packet is a match with the level 1 parent route 172.16.0.0/16 but there is not a match with any of the child routes of this parent route.

TBD

Since classless routing behavior is configured, the router will now continue to search the routing table for a route where there may be fewer bits that match, but the route is still a match. The mask of a default route is /0, which means that no bits need to match. In classless routing behavior, if no other route matches, the default route will always match. S*

0.0.0.0/0 is directly connected, Serial0/0/1

Since there is a default route configured on the R2 router, this route is used to forward the packets to PC3. Step 4: Examine the routing table on R3 to determine how the traffic generated by the ping

Change exhibit in question one to match exhibit in question 3.

To: P - This route is in the passive state. When DUAL is not performing its diffusing computations to determine a path for a network, the route will be in a stable mode, known as the passive state. If DUAL is recalculating or searching for a new path, the route will be in an active state and will display an A. All routes in the topology table should be in the passive state for a stable routing domain. However, if the router does not receive replies from all routers in a reasonable time (approximately 180 seconds), DUAL will display an s flag. This is called "Stuck in Active" and is a CCNP-level troubleshooting issue.

TBD

TBD

Change: No, R3 can be used, but there will be a longer delay before adding it to the routing table. TBD To: No, R2 can be used, but there will be a longer delay before adding it to the routing table. Change: In this example, the 1544 Mbps link and the 1024 Kbps link are irrelevant in the calculation as far as the bandwidth metric is concerned. To: In this example, the 1544 kbps link and the 1024 Kbps link are irrelevant in the calculation as far as the bandwidth metric is concerned.

TBD

Change: What commands are required to enable EGIRP and include the connected networks ... What command is required to enable EGIRP to include the VLSM information instead … To: What commands are required to enable EIGRP and include the connected networks ...

TBD

What command is required to enable EIGRP to include the VLSM information instead …

Change: What commands are required to enable EGIRP and include the appropriate networks ... What command is required to enable EGIRP to include the VLSM information instead … TBD To: What commands are required to enable EIGRP and include the connected networks ... What command is required to enable EIGRP to include the VLSM information instead …

Change: What commands are required to enable EGIRP and include the connected networks ... What command is required to enable EGIRP to include the VLSM information instead … TBD To: What commands are required to enable EIGRP and include the connected networks ... What command is required to enable EIGRP to include the VLSM information instead …

Change: Step 2: Adjust hello intervals for the slower links. Change the hello intervals for the 64 kbps links to 60 seconds. To: Step 2: Adjust hello intervals for the slower links. Change the hello intervals for the 64 kbps links to 60 seconds.

TBD

Note: The command for configuring the hold-time interval is not supported in the current PT version. The activity evaluation ignors the missing hold-time configuration and still leads to 100% completion.

Instructions .pdf file (Task 6, Step 2) and PT instructions (Task 5, Step 2). Change: Step 2: Adjust hello intervals for the slower links. Change the hello intervals for the 64 kbps links to 60 seconds. To: Step 2: Adjust hello intervals for the slower links. Change the hello intervals for the 64 kbps links to 60 seconds. TBD Step 3: Open the CLI for router B1. View the CLI output for about one minute. What do you notice? ____holding time expired__________ NOTE: The current version of Packet Tracer allows the configuration of the hello-interval command. However, the hold-time command is not supported. This is a known bug that will be addressed in a future release. Step 4: Reset the hello intervals for each 64 kbps link to the default value on routers B1, B2 and B3.

Change: R1 can also ignore the second LSP because SPF has already learned about the network 10.6.0.0/16 with a cost of 10 from R3. TBD To: R1 can also ignore the second LSP because SPF has already learned about the network 10.7.0.0/16 with a cost of 10 from R3. Change: For the WANs in Region 1, subnet the address space 10.1.128.0/28. Record the subnets in the table provided in the printed instructions. To: For the WANs in Region 1, subnet the address space 10.1.64.0/28. Record the subnets in the table provided in the printed instructions.

R2, Fa0/1 - should be marked correct when it is configured with Passive Interface. R3, Fa0/1 - should be marked correct when it is configured with Passive Interface. R4, Fa0/1 - should be marked correct when it is configured with Passive Interface. R5, Fa0/0 and Fa0/1 - should be marked correct when it is configured with Passive Interface. R6, Fa0/0 and Fa0/1 - should be marked correct when it is configured with Passive Interface.

TBD

TBD

R2, Fa0/1, sunbet address. Change: 172.16.0.0/19 To: 172.16.40.0/22 R3, Fa0/1, sunbet address. Change: 172.16.0.0/19 To: 172.16.50.0/23 R4, Fa0/1, sunbet address. Change: 172.16.0.0/19 To: 172.16.52.0/25 TBD R5, Fa0/0, sunbet address. Change: 172.16.0.0/19 To: 172.16.44.0/22 R6, Fa0/0, sunbet address. Change: 172.16.0.0/19 To: 172.16.48.0/23 R6, Fa0/1, sunbet address. Change: 172.16.0.0/19 To: 172.16.32.0/21

Correct the bugs in PT5.1

TBD

The release of PT v5.3.1 should resolve this problem so that it can open all PT activities, regardless of the version the activity was saved under.

TBD

Working on solving this problem.

TBD

The developing team will be fix this in the next curriculum release.

TBD

Course Name

Course Version


4.0.5.0

Page

Language Error Type English

SBA

Error

1) There is an error in the Instructor SBA final configs. Remote1's configurations are missing in the final configs at the bottom of the lab. 2) The word "lab" is used when it should state "assessment"

Correction Correct Remote 1's configuration and change to "assessment"

Prod Date 7/29/2009

To view the version of a course, click the "About" link lo Course Name

Course Version

Page

Language

Error Type

CCNA 4.0.4.0 Exploration: Routing Protocols and Concepts

1.4.5.4

English

Flash Media


2.3.3.1

English

Chapter Text


2.3.3.1

English

Chapter Text


2.6.1.1

English

Chapter Text


3.4.4.2

English

Packet Tracer


3.5.2.1

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Labs


3.5.2.2

English

Packet Tracer


3.5.2.2

English

Packet Tracer


4.2.2.1

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Flash Media


4.2.3.1

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Flash Media


4.4.1.1

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Flash Media


5.4.5.3

English

Flash Media


5.6.2.1

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Labs


5.6.2.1

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Labs


5.6.2.1

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Labs


5.6.2.2

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Packet Tracer


5.6.3.1

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Labs


5.6.3.1

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Labs


5.6.3.1

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Labs


5.7.1.2

English

Flash Media


6.2.2.1

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Chapter Text


6.4.1.2

English

Packet Tracer


6.4.3.1

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Labs


6.4.4.2

English

Packet Tracer


7.1.2.1

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Flash Media


7.1.3.3

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Flash Media


7.2.2.1

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Flash Media


7.2.4.1

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7.3.2.1

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Flash Media


7.4.1.1

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7.5.1.2

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Packet Tracer


7.5.2.2

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7.6.1.2

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7.6.1.3

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9.2.1.1

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9.4.4.2

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9.6.1.2

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CH8 Quiz English

Assessme nt Quiz


11.2.1.1

Chapter Text

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11.2.6.1

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11.2.6.1

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11.3.2.3

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11.5.1.1

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11.5.2.1

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11.5.2.1

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Flash Media


11.6.1.1

English

Labs


11.6.3.1

English

Labs

To view the version of a course, click the "About" link located at the bottom of a course page. Error

One quarter of the way in to the Flash Animation: The current animation shows the source IP being looked up in the routing table. The destination IP should be highlighted and the arrow into the routing table should originate from the destination IP. Also the Protocol 800 field should stay visible.

IP address typo in 2nd paragraph first sentence after heading "Layer 3 Neighbors"

Page 2.3.3.1, 5th para, 2nd sentence: Both are members of the 172.16.1.0/24 network. Error: R1 and R2 are neighbors on the 172.16.2.0/24 network-not the 172.16.1.0/24 network

Below text subtitle: Calculating a summary route First sentence has an incorrect IP address.

Task 1 Step 1: The "Note" incorrectly states that the AD for the static route 192.168.2.0 [1/0] is 0.

Task 3, Step 4, items 2 and 3. List incorrect PC connected to the LAN.

The HQ LAN interface in the table and text is incorrect.

In the instructions. Several typo, missing words and incorrect interface errors

As the first half of the animation plays, the Hop count for each update, when highlighted in yellow, should be zero and not one. When the hop count changes to a orange highlight it should then change from zero to one.

As the animation plays several network connections are missing from the updates.

About half\way through the animation, the R3 routing table entry for network 10.4.0.0 changes from Fa0/0 to S0/0/1 (as shown with the orange highlighted area in the routing table). However, as the flash plays on, the new interface S0/0/1 incorrectly changes back to Fa0/0.

Press button R2 show ip route. Incorrect IP address given for RIP route.

Task 10 has an incorrect subnet mask, in the answer key, for the network connection between the ISP and HQ routers



The answer key for the Passive Interface for the router BRANCH is wrong. It is marked for fa 0/1 for passive interface.

Task 2, Step 3 configurations are incorrect

Task2, Step 2 configurations are incorrect.

Task 2, Step 1 has incorrect configuration

Summary/Review Q7.

Last paragraph, first sentence. An incorrect number of host is listed for a /20 subnet.

PT instructions. The Addressing Table has incorrect device and interface names. See lab 6.4.1.1 for the correct table.

Page 1, Addressing Table, Link from HQ to Branch2, typo error for IP address. Instructor answer key, Task 4, Step 2, item 6 list incorrect IP address.

The instruction and answer key for the address for Link from HQ to ISP is incorrect. Also the name for the router is incorrect. They do not match lab 6.4.4.1.

Click Topology button. R3 LoO and Lo1 have incorrect IP address.

Press button R1 Routes. The media incorrectly shows a Loopback connection for R1 configurations.




Press button show ip route. The media incorrectly shows a Loopback connection for R1 configurations.

The initial network has PC1 and PC2 in the incorrect locations. The answer key is correct.

The lab topology and table are used for the PT initial and final topology, but they do not match with lab 7.5.2.1.

Chapter summary and review, question 4. Answer is not accurate.

The topology does not provide the number of hosts per LAN.

Topology - Need to label routers R1, R2 and R3 to match buttons. Add: R1 to lower router on far left connecting LAN 172.16.1.0/24. R2 to middle router connecting LAN 172.16.2.0/24. R3 to lower router on far right connecting LAN 192.168.1.0/24. First bullet, last sentence has the wrong state for the A symbol.

Instructions, Task 5, Step 4, item 4. Missing command for R3, eigrp messages.

The answer key of IP address for PC1 is wrong.

There are a some error in the Table and topology.

Initial topology only. On the logical workspace 2 out of the 3 PCs are label incorrectly.

The IP address table on the top of PT activity. For the 3 PCs: the subnet mask and the default gateway column are flipped

End of Chapter Quiz (the one inside the curriculum) Question 10. Incorrect format for supernet shown.

First paragraph, last sentence incorrectly states that the three serial link show various bandwidths.

R3 output shows wrong interfaces:

Button R1, R2 and R3. Information show in the output statements are incorrect and contradictory.

Under ip ospf cost Commands, last R3 interface command has incorrect serial interface.

Incorrect output for R3:

Click button: R1 After. The line that has the first orange highlight has an incorrect AD value.

R1 After output - OSPF Administrative Distance for 192.168.10.8 route is 100 but s/b 110

All student and instructor files. Task 7, at the end of Step 2. The notice incorrectly states that all process ID must be the same to establish neighbor adjacencies.

Student .pdf and .doc files. Task 2, Step 1. Branch1 interface s0/0/0 should be configured with the "clock rate" command, because it is a DCE.

ocated at the bottom of a course page. Correction

Third cell in the table. Change: Protocol 800 To: Type 800 One quarter of the way in to the Flash Animation: Change orange highlighted area: Source IP 192.168.1.10 To: Dest. IP 192.168.4.10 Third cell in the table, orange highlighted. Change: from being blank To: Type 800 Change black arrow origination from: Source IP 192.168.1.10 To originate from: Dest. IP 192.168.4.10

Change: For example, R1 and R2 are neighbors. Both are members of the 172.16.1.0/24 network. To: For example, R1 and R2 are neighbors. Both are members of the 172.16.2.0/24 network. Change Page 2.3.3.1, 5th para, 2nd sentence to: Both are members of the 172.16.2.0/24 network.

Change: Here's the process of creating the summary route 172.16.1.0/22, as shown in the figure: To: Here's the process of creating the summary route 172.16.0.0/22, as shown in the figure:

Prod Date

Change: Note the Administrative Distance for the static routes is 0. Example: 192.168.2.0 [1/0] via 192.168.1.6. The 1 is the hop count and 0 is the AD. To: Note the Administrative Distance for the static routes is 1. Example: 192.168.2.0 [1/0] via 192.168.1.6. The 1 is the AD and 0 is the hop count.

Change: 2. Assign the last valid host address in the BRANCH1 LAN 1 subnet to PC2. 3. Assign the last valid host address in the BRANCH1 LAN 2 subnet to PC3. To: 2. Assign the last valid host address in the BRANCH1 LAN 1 subnet to PC3. 3. Assign the last valid host address in the BRANCH1 LAN 2 subnet to PC2.

Table Change: Fa0/0 To: Fa0/1 Step 2, item 5 Change: Assign fifth subnet to the LAN connected to the Fa0/0 interface of HQ. What is the subnet address? __________________ To: Assign fifth subnet to the LAN connected to the Fa0/1 interface of HQ. What is the subnet address? __________________

Subnet Table For HQ, Change: S0/0 S0/1 To: S0/0/0 S0/0/1 For Branch 1, Change: Branch 1 S0/0 To: BRANCH1 S0/0/0 For Branch 2, Change: Branch 2 S0/1 To: BRANCH2 S0/0/1 Task 2 Step 2 Change: 1. Assign first subnet (lowest subnet) to the LAN connected to the Fa0/1 interface of BRANCH2. 2. Assign second subnet to LAN connected to the Fa0/0 interface of BRANCH2. 3. Assign third subnet to the WAN link from HQ to Branch2. When hop count is highlighted in yellow. For router R1 Change: 10.1.0.0 1 To: 10.1.0.0 0 Change: 10.2.0.0 1 To: 10.2.0.0 0 For router R2 Change: 10.2.0.0 1 To: 10.2.0.0 0 Change: 10.3.0.0 1 To: 10.3.0.0 0 For router R3 Change: 10.3.0.0 1 To: 10.3.0.0 0 Change: 10.4.0.0 1 To: 10.4.0.0 0

R1, 25% into animation. Update to be sent out Fa0/0 should include 10.3.0.0. Add: 10.3.0.0 2 R3, 50% into animation. Update to be sent out Fa0/0 should include 10.2.0.0: Add: 10.2.0.0 2 R1, 80% into animation. The interface shown in the yellow box Change: S0/0/1 To: S0/0/0

Change the 10.4.0.0 routing table (Interface) column, below router R3. After the orange highlighted event. Change: Fa0/0 To: S0/0/ Change: R 10.0.0.0/16 [120/1] ... To: R 172.30.0.0/16 [120/1] ...

Task 10, 7th question. Change: What networks are present in the routing table of the ISP router? _______10.0.0.0/23________ _______192.168.1.0/24________ _______209.165.200.0/27________ _______209.165.202.0/27________ To: What networks are present in the routing table of the ISP router? _________10.0.0.0/23_______ _________192.168.1.0/24______ _________209.165.200.0/30______ _________209.165.202.0/27________

Task 10, 6th question. Change: What routes are present in the routing table of the HQ router? ________10.0.0.0/8_________ ________192.168.1.0/25_______ ________209.165.200.0/27_______ ________0.0.0.0/0_________ To: What routes are present in the routing table of the HQ router? _________10.0.0.0/8_______ _________192.168.1.0/25_______ _________209.165.200.0/30________ _________0.0.0.0/0________

Task 8, first question. Change: What networks are present in the HQ routing table? List the networks with slash notation. ________192.168.1.0/25_______ ________209.165.200.0/27_____ To: What networks are present in the HQ routing table? List the networks with slash notation. _______192.168.1.0/25______ _______209.165.200.0/30______

Change marked Passive Interface From: FastEthernet0/1: FastEthernet0/1 To: FastEthernet0/0: FastEthernet0/0

Task 2 Step 3 Change: hostname ISP ! no ip domain-lookup ! interface FastEthernet0/0 ip address 172.16.1.1 255.255.255.0 duplex auto speed auto no shutdown ! interface Serial0/0/1 ip address 172.20.20.1 255.255.255.0 no shutdown ! ip route 10.45.0.0 255.255.252.0 Serial 0/0/1 ip route 192.168.1.0 255.255.255.0 Serial0/0/1 ! line con 0 line vty 0 4 password cisco login ! end To: hostname ISP ! no ip domain-lookup ! interface FastEthernet0/0 ip address 172.16.1.1 255.255.255.0 duplex auto speed auto

Task 2 Step 2 Change: hostname HQ ! no ip domain-lookup ! interface FastEthernet0/0 ip address 10.45.2.1 255.255.255.0 duplex auto speed auto no shutdown ! interface Serial0/0/0 ip address 10.45.1.1 255.255.255.0 no shutdown ! interface Serial0/0/1 ip address 172.20.20.254 255.255.255.0 clock rate 64000 no shutdown ! router rip passive-interface FastEthernet0/0 network 10.0.0.0 default-information originate ! ip route 0.0.0.0 0.0.0.0 Serial0/0/1 ! line con 0 line vty 0 4 password cisco login ! end

Task 2 Step 1 Change: hostname BRANCH ! no ip domain-lookup ! interface FastEthernet0/0 ip address 192.168.1.1 255.255.255.0 duplex auto speed auto no shutdown ! interface Serial0/0/0 ip address 10.45.1.254 255.255.255.0 clock rate 64000 no shutdown ! router rip passive-interface FastEthernet0/0 network 10.0.0.0 network 192.168.1.0 ! line con 0 line vty 0 4 password cisco login ! end To: hostname BRANCH ! no ip domain-lookup ! interface FastEthernet0/0 1. HQ has 2 S0/0/0 interfaces. The inside interface to BRI should be S0/0/1. Change serial interface from HQ to BR1 From: S0/0/0 To: S0/0/1 2. Answer shows command: ip router 0.0.0.0 0.0.0.0 S0/0/0. "router" s/b "route" Change last line of output From: HQ(config)#ip router 0.0.0.0 0.0.0.0 s0/0/0 To: HQ(config)#ip route 0.0.0.0 0.0.0.0 s0/0/0

Change: Subnet 10.4.0.0/16 is further subnetted with a /20 mask. This mask will allow 2046 host addresses per subnet. To: Subnet 10.4.0.0/16 is further subnetted with a /20 mask. This mask will allow 4094 host addresses per subnet. For column Device. Change: HQ Branch 1 Branch 2 PC1 PC2 PC3 To: HQ BRANCH1 BRANCH2 For column Interface Change: Fa0/0 S0/0/0 S0/0/1 Lo1 Fa0/0 S0/0/0 S0/0/1 Fa0/0 S0/0/0 S0/0/1 NIC NIC NIC To: Fa0/0 Link from HQ to Branch2 Change: 172.16.154.6/30 To: 172.16.254.6/30 Task 4, Step 2, item 6 Change: 172.16.154.4 To: 172.16.254.4

PT Instructions, Addressing Table Change: Link from HQ to ISP 172.16.71.8/30 To: Link from HQ to ISP 209.165.201.0/30 PT Answer Key Router name Change: Router2 To: ISP PT Answer Key Router HQ, Port S0/0/1 Change: Link to Router2 To: Link to ISP PT Answer Key Router HQ, Port S0/0/1 Change: 172.16.71.9 To: 209.165.201.1 PT Answer Key Router ISP, Port S0/0/0 Change: 172.16.71.10 Change: Lo0 172.30.200.32/28 Lo1 172.30.200.32/28 To: Lo0 172.30.110.0/24 Lo1 172.30.200.16/28 Change: C 172.30.2.0 is directly connected, Loopback0 C 172.30.1.0 is directly connected, FastEthernet0/0 To: C 172.30.1.0 is directly connected, FastEthernet0/0 C 172.30.2.0 is directly connected, FastEthernet0/1

Change: C 172.30.2.0 is directly connected, Loopback0 C 172.30.1.0 is directly connected, FastEthernet0/0 To: C 172.30.1.0 is directly connected, FastEthernet0/0 C 172.30.2.0 is directly connected, FastEthernet0/1 Change: C 172.30.2.0/24 is directly connected, Loopback0 C 172.30.1.0/24 is directly connected, FastEthernet 0/0 To: C 172.30.1.0/24 is directly connected, FastEthernet 0/0 C 172.30.2.0/24 is directly connected, FastEthernet 0/1 Change: C 172.30.2.0/24 is directly connected, Loopback0 C 172.30.1.0/24 is directly connected, FastEthernet 0/0 To: C 172.30.1.0/24 is directly connected, FastEthernet 0/0 C 172.30.2.0/24 is directly connected, FastEthernet 0/1 Change: C 172.30.2.0/24 is directly connected, Loopback0 C 172.30.1.0/24 is directly connected, FastEthernet 0/0 To: C 172.30.1.0/24 is directly connected, FastEthernet 0/0 C 172.30.2.0/24 is directly connected, FastEthernet 0/1 Move PC1 next to Switch0 Move PC2 next to Switch1

PC1 must be part of Branch LAN 1 and PC2 must be part of Branch LAN 2. Also the answer key will need corrections to match these changes.

Change: With the command no auto-summary in the router-config mode. To: With the command no auto-summary in the router configuration mode.

LAN LAN LAN LAN LAN LAN LAN LAN

PC1 PC2 PC3 PC4 PC5 PC6 PC7 PC8

-

60 60 30 30 10 10 05 05

Hosts Hosts Hosts Hosts Hosts Hosts Hosts Hosts

Change: DUAL will display an A if the route is "Stuck in Active," which is a CCNP-level troubleshooting issue. To: DUAL will display an A if the route is "Active," which is a CCNPlevel troubleshooting issue.

Change: R3(config)#router eigrp 1 R3(config-router)#network 192.168.1.0 R3(config-router)#network 192.168.10.4 0.0.0.3 R3(config-router)# To: R3(config)#router eigrp 1 R3(config-router)#network 192.168.1.0 R3(config-router)#network 192.168.10.4 0.0.0.3 R3(config-router)#network 192.168.10.8 0.0.0.3 R3(config-router)#

Change: 172.168.1.10 To: 172.16.1.10 1) In the table, labels should be: Branch1, HQ, and Branch2 instead of R1,R2, and R3. 2) In the topology PC0, PC1 and PC2 should be PC1, PC2, and PC3. 3) The Loopback interface should be loopback1

Change: PC0 PC2 To: PC2 PC3 Last 3 rows in the table. PC1, last 2 columns Change: 172.18.129.1 255.255.255.240 To: 255.255.255.240 172.18.129.1 PC2, last 2 columns Change: 172.18.64.1 255.255.192.0 To: 255.255.192.0 172.18.64.1 PC3, last 2 columns Change: 172.18.128.1 255.255.255.0 To: 255.255.255.0 172.18.128.1

Change: 172.16.0.0/13 is subnetted, 1 subnets S 172.16.0.0 is directly connected, FastEthernet0/0 To: S 172.16.0.0/13 is directly connected, FastEthernet0/0 Change: Also notice in this topology that there are three serial links of various bandwidths and that each router has multiple paths to each remote network. To: Also notice in this topology that there are three serial links that can have various bandwidths and that each router has multiple paths to each remote network. Currently all serial links are set to default bandwidth 1544kbps.

Change From: C 192.168.10.4 is directly connected, Serial0/0 C 192.168.10.8 is directly connected, Serial0/1 To: C 192.168.10.4 is directly connected, Serial0/0/0 C 192.168.10.8 is directly connected, Serial0/0/1

Button R1 Change: O 192.168.10.8 [110/128] via 192.168.10.2, 14:27:57, Serial0/0/0 To: O 192.168.10.8 [110/128] via 192.168.10.6, 14:27:57, Serial0/0/1 [110/128] via 192.168.10.2, 14:27:57, Serial0/0/0 Button R2 Change: O 192.168.10.4 [110/128] via 192.168.10.1, 14:31:18, Serial0/0/0 To: O 192.168.10.4 [110/128] via 192.168.10.10, 14:31:18, Serial0/0/1 [110/128] via 192.168.10.1, 14:31:18, Serial0/0/0 Button R3 Change: O 192.168.10.4 [110/845] via 192.168.10.9, 14:31:52, Serial0/0/1 [110/845] via 192.168.10.5, 14:31:52, Serial0/0/0 O 172.16.1.16/28 [110/782] via 192.168.10.5, 14:31:52, Serial0/0/0 O 10.10.10.0/24 [110/782] via 192.168.10.9, 14:31:52, Serial0/0/1 To: O 192.168.10.4 [110/128] via 192.168.10.9, 14:31:52, Serial0/0/1 [110/128] via 192.168.10.5, 14:31:52, Serial0/0/0 O 172.16.1.16/28 [110/65] via 192.168.10.5, 14:31:52, Serial0/0/0

Change From: R3(config)#interface serial 0/0/0 R3(config-i f)#ip ospf cost 781 To: R3(config)#interface serial 0/0/1 R3(config-i f)#ip ospf cost 781

Change From: Gateway of last resort is 192.168.10.10 to network 0.0.0.0 To: Gateway of last resort is 192.168.10.5 to network 0.0.0.0 Change: [100/117187] To: [110/117187]

Change From: O 192.168.10.8 [100/117187] via 192.168.10.6, 00:01:33, Serial0/0/1 To: O 192.168.10.8 [110/117187] via 192.168.10.6, 00:01:33, Serial0/0/1 "Change: Notice that the output specifies the process ID used by OSPF. Remember, the process ID must be the same on all routers for OSPF to establish neighbor adjacencies and share routing information. To: Notice that the output specifies the process ID used by OSPF. Remember, the process ID is local to the router and can be different between routers without affecting neighbor adjacencies and the sharing of routing information."

Change: interface Serial0/0/0 ip address 172.16.7.2 255.255.255.252 no shutdown To: interface Serial0/0/0 ip address 172.16.7.2 255.255.255.252 clock rate 64000 no shutdown

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Error

" link located at the bottom of a course page. In an IP Packet the Source IP address field is before the Destination IP address. First command below first paragraph is missing a /0.

Since this is an example of Per-packet load-balancing, the packets should alternate between paths.

In all instructor and student .pdf and .doc files. Task 12: All the serial interface should have 2 "/".

In all instructor and student .pdf and .doc files. Task 9: All the serial interface should have 2 "/".

Task 3, Step 11 for all student and instructor .pdf and .doc files. The Note is incorrect because the interface will NOT be active at this point.

Student have already learned VLSM in CCNA1, they are trying to make the WAN links a /30.

The directions in Task 2, Step 1, item 4, says to use the last uable address. However, the activity is using a single subnetting scheme, so the correct address is 192.168.1.94. The activity is requiring the address to be .66 with a /27 subnet mask.

Student and Instructor .pdf files. Task 1, Step 2, the last table, the statement right above it has an incorrect address space.

Embedded instruction in the PT activity, Task 1, Step 1, last bullet, first sentence. Has an incorrect address space.

Embedded instruction in the PT activity, Task 1, Step 1, Region 2 host numbers are incorrect.

The Packet Tracer Skills Integration instructions .pdf file. Task 1, Step 1, last bullet. Incorrect IP address for Region 2 address space is listed

Packet Tracer instructions for this activity, Task 1, Step 1, last bullet. Incorrect IP address, for WANs in region 2, does not match PT answer key.

Instructor and student lab (.doc and .pdf), Task 1 Step 1, 7th bullet. Incorrect IP address, for WANs in region 2.

A period is missing from option 3 of question 10, "When the administrator assigns an IP address and subnet mask to the interface".

Second sentence, a LSU can contain more then 10 LSA.

Student and Instructor .pdf and .doc files. The bandwidth given in the topology should be ignored when doing the lab as some values are incorrect.

In the Packet Tracer activity 11.6.1, Scenario A, the instructions state to configure PC1, PC2 and PC3. The topology shows PC0, PC1 and PC2. The assessment refers to PC0, PC1 and PC2.

Embedded instruction in the PT activity, Task 9, Steps 2 and 3. Incorrect router to configure is given.

Instructor answer .pdf file, Task 10. Missing the default OSPF route in the routing table for Branch2 router.

Instructor answer .pdf file, Task 10. Missing the default OSPF route in the routing table for Branch1 router.

Instructor answer .pdf file. In the Addressing Table, for the 3 PCs. The Subnet Mask data is in the Default Gateway column and the Default Gateway data is in the Subnet Mask column.

All instructor and student (.pdf and .doc) files. Task 1, Step 1. Typo error in router name. Extra space added to name. The Instructor Version answers have an error in Task 5 Step 7. Under the routes shown in the routing table

Last set of commands on the page has an incorrect serial interface number

Question was a little confusing, since option 2 is also part of the answer.

In the button "Pings are sent to R3". The first popup text box show: The PING shows good with !!!!!, but "Success rate is 0 percent 0/5" is incorrect.

In the network cloud, the Research switch doesn't have a hostname, so it shows in CDP as Switch.

All student and instructor .pdf and .doc files. Task 11 step 3, second command has a incoorect serial interface number

All student and instructor .pdf and .doc files. Task 10 step 1. The default route is configured with the interface. Instructors are finding the instruction unclear.

All student and instructor .pdf and .doc files. Task 9 step 1. There is no Serial 0/0/0 on R3

All student and instructor .pdf and .doc files. Task 3 step 9, below the debug output. It is not a LAN interface that was added. All student and instructor .pdf and .doc files. Task 11. Router ISP is called R3, this is incorrect.

All student and instructor .pdf and .doc files. Task 9, step 3. Router ISP is called R3, this is incorrect. Change: View the routing table of R3 to verify the new static route entry. To: View the routing table of ISP to verify the new static route entry. All student and instructor .pdf and .doc files. Addressing Table, ISP serial inteface has incorrect label.

Task 9, Step 2. The description requires the IP address for the static route, but the answer key wants the interface as the exit interface. Task 11. Router ISP is called R3, this is incorrect.

Task 9, step 3. Router ISP is called R3, this is incorrect.

Instruction, table, page 1. R2 S0/0/0 has incorrect IP Address Task 3 step 2, last usable address should be 12.255.255.254 Task 4, Router 4 should be Router 3

Instructor answer key (.doc and .pdf). Task 5 Reflection, last 2 question has incorrect answer.

The PT file for 3.5.2 answer network is not correct, and doesn't match the written lab. The correct answer for the subnet mask is 255.255.255.224, but the answer network requires a 255.255.255.240 to be correct. But that answer cannot work for the problem as given.

All student and instructor .pdf and .doc files. Task 3 step 2 #4 and step 3 #4 both have an incorrect interface number for the router.

All student and instructor .pdf and .doc files. The Scenario section, last paragraph. Incorrect serial interface given.

Instructor answer key (.doc and .pdf). Scenario has incorrect number of host IP addresses for HQ LAN. Because of this change Task 1 has 2 incorrect answers.

All student and instructor .pdf and .doc files. Topology, Router HQ has incorrect FastEthernet interface number. Needs to match the table. PT answer file has a typo on the ISP and HQ for the static route to the 172.20.0.0 network

The RIP message its self is up to 504 bytes. If the graphic is including IP header and UDP header to come up with 512, this is incorrect. 512 bytes includes RIP message plus UDP header. 2nd paragraph, last sentence. Incorrect byte size.

The RIP message its self is 504 bytes, not 512. Routers R1 and R2 are incorrectly labeled.

First paragraph, last sentence is not clear.

Press the "RIP configuration" button. An incorrect network address is given for R2

Click topology button. IP address between R1 and R2 is incorrect. Instructor and student lab (.doc and .pdf), Task 2 Step 2. Incorrect network statement add to the rip configuration. Cannot route RIP between the HQ and the ISP because RIP is an IGP.

In the .pka answer file. Incorrect network statement add to the rip configuration. Cannot route RIP between the HQ and the ISP because RIP is an IGP. 2nd paragraph. Incorrect name for acronym NAT. Also glossary has the name incorrect

For the class B address the number of possible networks is incorrect.

In the table, "Number of Networks and Hosts per Network for Each Class", the number of possible networks for Class be should be 16,384, not 16,348. See screenshot-1

Incorrect RCF is listed.

Incorrect device given in the bottom right corner of network design.

Task 4, step 3, question 1. Has incorrect number of networks.

Task 4, step 2, question 1. Has incorrect number of networks.

Network address is incorrect in table or topology, between HQ and ISP routers..

There are several incorrect answers in the instructor lab.

Instructor answer key, .doc and .pdf files. For tasks: 1 and 2. Question 6 in the Instructor Lab Manual gives an incorrect subnetmask as 172.16.56.0/24.

Fa0/0 for R2 has an incorrect subnet mask.

Last sentence. The command version 1 does not restore to the same default values as does no version

After the topology edit is completed in the figure, the default gateways for PC1 and PC2 will be incorrect. Instructor and student lab (.doc and .pdf), topology on page 1. PC1 and PC2 need to be swapped. Student and Instructor Lab manual (.pdf and .doc files) has incorrect router name used in 2 sentences

Instructor Lab manual (.pdf and .doc files) has incorrect subnet mask answer.

Answer Key: HQ>Ports>Serial0/0/1 has an incorrect Subnet Mask of 255.255.255.0 Answer Key: HQ>RIP>Networks. An extra address is added that is not part of any network in the activity. Answer Key: Router Branch, interface S0/0/0 and router HQ interface S0/0/1. The answer key is using a clock rate of 56000. This is not the standard used in other activities. Instructor and student lab (.doc and .pdf), Task 4, Step 4. Incorrect router name is given in the question. Answer Key: PC1>Ports>FastEthernet. An incorrect IP address is given in the asnwer key.

When you view the Router Output for R3 it shows the s0/0/1 interface has the "clockrate" command issued, but when you view the topology graphic, R3 s0/0/1 interface is set as a DTE Device and not a DCE device. There are 5 incorrect host addresses on the interface of the routers.

Paragraph for Acks are always sent using a unicast address, is are conflicting.

Third paragraph, second sentence. Incorrect ip address shown for the 64 kbps link.

Answer key. DCE is set up on different ports than in the lab. R1 Has DCE set on both its serial ports, R2 has it on S0/0/1 (this is correct), and R3 has no DCE.

The clock rate for this PT is set at 9600, other labs and PT use 64000 Answer key. DCE is set up on different ports than in the lab. Branch1 Has DCE set on both its serial ports, HQ has it on S0/0/1 (this is correct), and Branch3 has no DCE.

Task 3: Troubleshoot the BRANCH1 Router. Step 5: Troubleshoot the routing configuration on the BRANCH1 router. p8 "Are there any connectivity problems that could be due to errors on other parts of the network?" No <--- "No" not red p9 "Are there any problems with the connected networks in the EIGRP topology table? " no <--- "no" not red Task 4: Troubleshoot the HQ Router Step 5: Troubleshoot the routing configuration on the HQ router. p11 "Are there any connectivity problems that could be due to errors on other parts of the network?" no <--- "no" not red Task 5: Troubleshoot the BRANCH2 Router Step 5: Troubleshoot the routing configuration on the HQ router. p12 "re there any problems with the configuration of the interfaces? " no <--- "no" not red p12 "If there are any problems with the configuration of the interfaces, record any commands that will be necessary to correct the configuration errors." none <--- "none" not red

Instructor lab (.doc and .pdf) files. Task 6. Answers to the Reflection are missing.

Instructor lab (.doc and .pdf) files. Task 4, Step 8 - The answer for the ping from PC2 to PC1 should be yes

Instructor lab (.doc and .pdf) files. Task 4, Step 5 - an extra connected network is added in the answer key that needs to be removed.

Instructor lab (.doc and .pdf) files. Task 4, Step 5 - an incorrect interface in a command in the answer key needs to be changed.

Instructor lab (.doc and .pdf) files. Task 4, Step 5 - an extra route is added in the answer key that needs to be removed.

Instructor lab (.doc and .pdf) files. For Task 3, Step 7 - a route is missing in the answer key.

Student Lab (.doc and .pdf) both in the curriculum and in the Student Lab Manual. Task 5, Step 2, remove extra sentence from instructions.

Student Lab (.doc and .pdf) both in the curriculum and in the Student Lab Manual. Task 2, Step 1, Network 209.165.202.128 0.0.0.3 is missing from the BRANCH1 configuration script.

PT answer key, Initial configurations for router ISP. Task 7 In order to successfully ping the Web Server a static route must be added to the ISP to provide a return path to the HQ router.

Instructor and student lab (.doc and .pdf), Task 1 Step 1. An incorrect IP address and instructions are not clear.

Instructor and student lab (.doc and .pdf), Task 1 Step 2, table 2. The Lo0 interface has an incorrect address as per the diagram. SBA - OSPF: All Instructor and student .doc and .pdf files. Task 3, Step 1 should state that you need to advertise the loopback on the ISP

ERouting_SBA_OSPF_in (all student and instructor .doc and .pdf files). Task 4 - Step 1:

Correction

Exchange "Source" and "Destination" in the animation so that the first yellow box is "Source IP Address" and the second yellow box is "Destination IP Address" in the callouts of both R1 and R2. Change: R1(config)#interface Serial0/0 To: R1(config)#interface Serial0/0/0 Change: packet order from packet 1 & 2 following one route and packets 3 & 4 following the other route. To: packet order from packet 1 & 3 following one route and packets 2 & 4 following the other route. Task 12, step 1 Change: interface Serial0/0 To: interface Serial0/0/0 also Change: interface Serial0/1 To: interface Serial0/0/1 Task 12, step 4 Change: interface Serial0/0 To: interface Serial0/0/0

Task 9, step 1 Change: interface Serial0/0 To: interface Serial0/0/0 also Change: interface Serial0/1 To: interface Serial0/0/1 Task 9, step 2 Change: interface Serial0/0 To: interface Serial0/0/0 also Change: interface Serial0/1 To: interface Serial0/0/1

Change: Note: The interface will be activated until the serial interface on R2 is configured and activated To: Note: The interface will not be activated until the serial interface on R2 is configured and activated.

Prod Date

Add the following note to the lab. Note: Use classful subnetting for this lab.

Change: WAN interface S0/0/0 on R2 to 192.168.1.66 /27 To: WAN interface S0/0/0 on R2 to 192.168.1.94 /27

Change: For the WANs in Region 2, subnet the address space 172.20.255.240/28. To: For the WANs in Region 2, subnet the address space 172.20.4.0/28. Change: For the WANs in Region 2, subnet the address space 172.20.8.0/28. To: For the WANs in Region 2, subnet the address space 172.20.4.0/28. Change: B1-R2 needs space for 1,000 hosts B2-R2 needs space for 500 hosts B3-R2 needs space for 200 hosts To: B1-R2 needs space for 500 hosts B2-R2 needs space for 200 hosts B3-R2 needs space for 100 hosts

Change: For the WANs in Region 2, subnet the address space 172.20.255.240/28. To: For the WANs in Region 2, subnet the address space 172.20.8.0/30. Change: For the WANs in Region 2, subnet the address space 172.20.8.0/28. To: For the WANs in Region 2, subnet the address space 172.20.4.0/28.

Change: For the WANs in Region 2, subnet the address space 172.20.255.240/28. B1-R2 to R2 receives the first subnet, B2-R2 to R2, the second and B3-R2 to R2 the third. Record the subnets. To: For the WANs in Region 2, subnet the address space 172.20..4.0/28. B1-R2 to R2 receives the first subnet, B2-R2 to R2, the second and B3-R2 to R2 the third. Record the subnets. "Change: "When the administrator assigns an IP address and subnet mask to the interface" to: "When the administrator assigns an IP address and subnet mask to the interface."

Change: An LSU packet can contain ten different types of LinkState Advertisements (LSAs), as shown in the figure. To: A LSU packet can contain 11 different types of Link-State Advertisements (LSAs), as shown in the figure. From the topology diagram remove the bandwidth between each router. R1 to R2 Remove: 64 kbps R1 to R3 Remove: 256 kbps R2 to R3 Remove: 128 kbps

In the table for the PT instructions. Change: PC1 To: PC0 Change: PC2 To: PC1 Change: PC3 To: PC2

Change: Step 2 Configure R1 serial interfaces with a bandwidth of 64 Step 3 Configure R1 serial interfaces with a cost of 1562 To: Step 2 Configure R2 serial interfaces with a bandwidth of 64 Step 3 Configure R3 serial interfaces with a cost of 1562

For the question: What OSPF routes are present in the routing table of the Branch2 router? Add: 0.0.0.0/0 [110/1] via 172.20.56.5 For the question: What OSPF routes are present in the routing table of the Branch1 router? Add: 0.0.0.0/0 [110/1] via 172.20.56.1 For PC1 Change Subnet Mask: 172.20.32.1 To: 255.255.240.0 Change Default Gateway: 255.255.240.0 To: 172.20.32.1 For PC2 Change Subnet Mask: 172.20.0.1 To: 255.255.224.0 Change Default Gateway: 255.255.224.0 To: 172.20.0.1 For PC3 Change Subnet Mask: 172.20.48.1 To: 255.255.248.0 Change Default Gateway: 255.255.248.0 To: 172.20.48.1

Change: The Branch 2 LAN will require 2000 addresses To: The Branch2 LAN will require 2000 addresses Change: 172.16.7.0 [110/128] via 172.16.7.9 To: 172.16.7.0 [110/128] via 172.16.7.9 [110/128] via 172.16.7.5

Change: R1(config)#interface serial 0/0 R1(config-if)#clock rate 64000 01:10:28: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to up To: R1(config)#interface serial 0/0/0 R1(config-if)#clock rate 64000 01:10:28: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up

Modify options to read: They appear in the routing table as soon as cables are connected to the router. They appear in the routing table when the routing protocol is configured on the router. They appear in the routing table when the no shut command is entered in the router interface configuration mode. Correct Answer: They appear in the routing table when an IP address is configured on an interface, and the show interface shows the interface is up, line protocol is up.

Change: Success rate is 0 percent (0/5) To: Success rate is 100 percent (5/5)

Change: Switch To: Research

Change: R3(config)#no ip route 172.16.2.0 255.255.255.0 Serial0/0/0 To: R3(config)#no ip route 172.16.2.0 255.255.255.0 Serial0/0/1

Change: Configure the R1 router with a default route using the Serial 0/0/0 interface of R1 as the next-hop interface. To: Configure the R1 router with a default route using the interface option on Serial 0/0/0 of R1 as the next-hop interface.

Change: On the R3 router, configure a static route to the 172.16.2.0 network using the Serial 0/0/0 interface of the R3 router as the exit interface. To: On the R3 router, configure a static route to the 172.16.2.0 network using the Serial 0/0/1 interface of the R3 router as the exit interface. Change: The new network that you configured on the LAN interface is now added to the routing table, as shown in the highlighted output. To: The new network that you configured on the WAN interface is now added to the routing table, as shown in the highlighted Change: If a summary static route was not configured on R3, how many individual static routes would be needed for hosts on the R3 LAN to communicate with all of the networks in the Topology Diagram? To: If a summary static route was not configured on ISP, how many individual static routes would be needed for hosts on the ISP LAN to communicate with all of the networks in the Topology Diagram? Change: View the routing table of R3 to verify the new static route entry. To: View the routing table of ISP to verify the new static route entry.

Change: S/0/0 To: S0/0/1

Change the .pka answer file for the activity. ISP config. Change: ip route 192.168.2.0 255.255.255.0 Serial0/0/0 To: ip route 192.168.2.0 255.255.255.0 209.165.201.2 Change: If a summary static route was not configured on R3, how many individual static routes would be needed for hosts on the R3 LAN to communicate with all of the networks in the Topology Diagram? To: If a summary static route was not configured on ISP, how many individual static routes would be needed for hosts on the ISP LAN to communicate with all of the networks in the Topology Diagram? Change: View the routing table of R3 to verify the new static route entry. To: View the routing table of ISP to verify the new static route entry.

Change: 192.168.2.3 to: 192.168.2.6 Task 3 step 2 Change: 12.0.0.254 To: 12.255.255.254 Change: Task 4: Enable the Fa0/1 interface on Router 4. To: Task 4: Enable the Fa0/1 interface on Router 3. Change: Can the HQ LAN and both of the BRANCH1 LANs be summarized into one route on the BRANCH2 router? This summarized route should also include the link between the HQ and BRANCH1 routers. _____yes_____ What would be the command used to add this summary route to the routing table? __ip route 192.168.9.0 255.255.255.128 serial 0/0____ To: Can the HQ LAN and both of the BRANCH1 LANs be summarized into one route on the BRANCH2 router? This summarized route should also include the link between the HQ and BRANCH1 routers. _____No, The HQ LAN is discontinguous from the rest of the subnets. This prevents an efficient summarization of the subnets._____ What would be the command used to add this summary route to the routing table? __no answer here____

PT answer file Change: subnetting from /28 To: /27

Step 2 Change: Assign the first valid host address in the link from West to Branch 2 subnet to the S0/0/2 interface. To: Assign the first valid host address in the link from West to Branch 2 subnet to the S0/1/0 interface. Step 3 Change: Assign the first valid host address in the link from East to Branch 4 subnet to the S0/0/2 interface. To: Assign the first valid host address in the link from East to Branch 4 subnet to the S0/1/0 interface.

Change: The IP addresses for the link from the HQ router to the ISP have already been assigned. The Serial 0/2 address of the HQ router is 209.165.200.226/27. The IP address of the Serial 0/0 of the ISP router is 209.165.200.227/27. To: The IP addresses for the link from the HQ router to the ISP have already been assigned. The Serial 0/1/0 address of the HQ router is 209.165.200.226/27. The IP address of the Serial 0/0/0 of the ISP router is 209.165.200.227/27.

Scenario Change: The HQ LAN will require 30 host IP addresses. To: The HQ LAN will require 70 host IP addresses. Task 1 Change: What is the maximum number of IP addresses that are needed for a single subnet? _____30_____ To: What is the maximum number of IP addresses that are needed for a single subnet? _____70_____ Change: What is the total number of IP addresses that are needed? _____96_____ To: What is the total number of IP addresses that are needed? _____136_____

Change: Fa0/1 To: Fa0/0 Static Routes Change: 172.20.0.0/14 To: 172.20.0.0/16 Change to 504

Change: The maximum datagram size is 512 bytes, not including the IP or UDP headers. To: The maximum datagram size is 504 bytes, not including the IP or UDP headers. Change: RIP Message (512 Bytes, Up to 25 routes) To: RIP Message (504 Bytes, Up to 25 routes) Swap router names R1 and R2

Change: Both routers, however, will advertise the 172.30.0.0 major network address, a summary route to R3. To: Both routers R1 and R3, however, will advertise the 172.30.0.0 major network address Change: R2(config-router)#network 172.30.0.0 To: R2(config-router)#network 10.0.0.0

Change 172.130.2.0/24 to: 172.30.2.0/24 Change: router rip passive-interface FastEthernet0/0/0 network 10.0.0.0 network 172.0.0.0 default-information originate To: router rip passive-interface FastEthernet0/0/0 network 10.0.0.0 default-information originate

Location: Network>HQ>RIP>Networks Remove Network ip address: 172.0.0.0: 172.0.0.0 Change: Without the introduction of VLSM and CIDR notation in 1993 (RFC 1519), Name Address Translation (NAT) in 1994 (RFC 1631), and ... To: Without the introduction of VLSM and CIDR notation in 1993 (RFC 1519), Network Address Translator (NAT) in 1994 (RFC 1631), and ... in glossary Change: Name Address Translation To: Network Address Translator Change: 16,348 To: 16,384

Change 16,384, to 16,348

Change: 1917 To: 1519 Replace the switch to the right of 10.4.64.0/20 to a router.

Change: What are the matching bits for the two networks? To: What are the matching bits for the thee networks? Change: 1. How many left-most matching bits are present in the two networks? To: 1. How many left-most matching bits are present in the three networks? Change either Link from HQ to ISP: 172.16.71.8/30 To: 209.165.201.0/30

Taks 1 Step 1 (Missing 2 zeros at end of IP address) Change: LAN1______________________________________________10101100.000 10000.01000000.000000 LAN2______________________________________________10101100.000 10000.01000010.000000 To : LAN1___________________________________________10101100.00010 000.01000000.00000000 LAN2__________________________________________ 10101100.00010000.01000010.00000000 Taks 1 Step 3, Question 1 (Missing 1 zeros at end of IP address) Change: 10101100.00010000.01000 To: 10101100.00010000.010000 Taks 1 Step 3, Question 2 (Missing 2 zeros at end of IP address) Change: 10101100.00010000.01000000.000000 To: 10101100.00010000.01000000.00000000 Taks 2 Step 1 (Missing 2 zeros at end of IP address) Change: LAN1_____________________________________________ 10101100.00010000.01000100.000000 LAN2_____________________________________________ 10101100.00010000.01000101.000000 To : LAN1__________________________________________ 10101100.00010000.01000100.00000000 LAN2__________________________________________ 10101100.00010000.01000101.00000000 Taks 2 Step 3, Question 2 (Missing 2 zeros at end of IP address) Change: 10101100.00010000.01000100.000000 To: 10101100.00010000.01000100.00000000 Taks 3 Step 1 (Missing 2 zeros at end of IP address) Task 1, question 6. Change: If the route is not correct, what is the correct summary route for the EAST LANs? ________________172.16.56.0/24 To: If the route is not correct, what is the correct summary route for the EAST LANs? ________________172.16.56.0/22 Task 2, question 6. Change: If the route is not correct, what is the correct summary route for the EAST LANs? ________________172.16.56.0/24 To: If the route is not correct, what is the correct summary route for the EAST LANs? ________________172.16.56.0/22

Change: 255.255.255.0 To: 255.255.0.0 Change: The default behavior of RIPv1 can be restored by using either the command version 1 or the command no version in the router configuration mode. To: The default behavior of RIPv1 can be restored by using the command no version in the router configuration mode. However, the command version 1 can also be used so that only RIPv1 messages are sent and received. Change default gateway of PC1 to 172.30.1.1 after figure is changed. Change default gatweay of PC2 to 172.30.2.1 after figure is Place PC1 above PC2. Task 2, step 1, numbers 11 Change: Assign the first valid host address in the BRANCH LAN1 network to the LAN1 interface of HQ. To: Assign the first valid host address in the BRANCH LAN1 network to the LAN1 interface of BRANCH. Task 2, step 1, numbers 13 Change: Assign the first valid host address in the BRANCH LAN2 network to the LAN2 interface of HQ. To: Assign the first valid host address in the BRANCH LAN2 network to the LAN2 interface of BRANCH.

Task 1, step 2, for the BRANCH LAN1 network Change: 255.255.255.244 To: 255.255.255.224 Change: 255.255.255.0 To: 255.255.255.224 Remove IP address: 195.168.40.0 In the PT answer key for these ports. Change: 56000 To: 64000 Change: Step 4: Troubleshoot the routing configuration on Branch 2. To: Step 4: Troubleshoot the routing configuration on HQ. In the PT answer key for PC1. Change: IP Address: 172.16.1.10 To: IP Address: 172.16.0.10

For R3 Router Output. Remove command: R3 (config-if) #clock rate 6400

R1, for both interfaces Change: .2 To: .1 R2, for Fa0/0 interface Change: .2 To: .1 R3, for interface S0/0/1 Change: .1 To: .2 R2, for Fa0/0 interface Change: .2 To: .1

Change: Acknowledgement (ACK) packets are sent by EIGRP when reliable delivery is used. RTP uses reliable delivery for EIGRP update, query, and reply packets. EIGRP acknowledgement packets are always sent as an unreliable unicast. EIGRP acknowledgement packets use unreliable delivery. To: Acknowledgement (ACK) packets are sent by EIGRP when reliable delivery is used. RTP uses reliable delivery for EIGRP update, query, and reply packets. EIGRP acknowledgment packets contain a nonzero acknowledgment number and always are sent by using a unicast address.

Change: The slowest link is the 64 Kbps link that contains the 192.168.3.0/24 network. To: The slowest link is the 64 Kbps link that contains the 172.16.3.0/30 network. Answer key, Change: R1>Ports>Serial0/0/1>Clock Rate: 64000 To: R1>Ports>Serial0/0/1>Clock Rate: 0 Change: R3>Ports>Serial0/0/0>Clock Rate: 0 To: R1>Ports>Serial0/0/0>Clock Rate: 64000

For all 3 clock rate locations in the answer key. Change: 9600 To: 64000 Answer key, Change: Branch1>Ports>Serial0/0/1>Clock Rate: 9600 To: Branch1>Ports>Serial0/0/1>Clock Rate: 0 Change: Branch2>Ports>Serial0/0/0>Clock Rate: 0 To: Branch2>Ports>Serial0/0/0>Clock Rate: 9600 Change the text color of the indicated words to red in the instructor version of the lab.

Answers should be provided as follows: BRANCH1 - FA0/0 was administratively down. The process ID for EIGRP was 2 vs. 1. The network mask for 172.18.129.0 was 0.0.0.7 vs. 0.0.0.15. HQ - The network mask 0.0.63.255 was missing for 172.18.64.0. Passive-Interface was assigned to Serial0/0/0 vs FA0/0. BRANCH2 - the No Auto-Summary command was missing in the EIGRP routing protocol.

Change: Attempt to ping between the hosts again. From the host PC2, is it possible to ping PC1? _______ no To: Attempt to ping between the hosts again. From the host PC2, is it possible to ping PC1? _______ yes Change: What connected networks are shown in the EIGRP topology table of the HQ router? 172.18.0.0/16 172.18.64.0/18 209.165.202.128/30 209.165.202.132/30 209.165.202.136/30 To: What connected networks are shown in the EIGRP topology table of the HQ router? 172.18.64.0/18 209.165.202.128/30 209.165.202.132/30 209.165.202.136/30

Change: If there are any problems with the EIGRP configuration, record any commands that will be necessary to correct the configuration errors. --- no passive-interface serial0/0 To: If there are any problems with the EIGRP configuration, record any commands that will be necessary to correct the configuration errors. --- no passive-interface serial0/0/0 Change: What routes are shown in the routing table? 172.18.0.0/16 is a summary 172.18.64.0/18 is directly connected 209.165.202.0/24 is a summary 209.165.202.128/30 is directly connected 209.165.202.132/30 is directly connected To: What routes are shown in the routing table? 172.18.0.0/16 is a summary 172.18.64.0/18 is directly connected 209.165.202.128/30 is directly connected 209.165.202.132/30 is directly connected

Change: What routes are shown in the routing table? 172.18.64.0/18 via 209.165.202.129 172.18.129.0/28 is directly connected 209.165.202.128 is directly connected 209.165.202.132 via 209.165.202.129 To: What routes are shown in the routing table? 172.18.64.0/18 via 209.165.202.129 172.18.129.0/28 is directly connected 209.165.202.128 is directly connected 209.165.202.132 via 209.165.202.129 209.165.202.136 is directly connected

Change: The protocol is down on the Serial0/0/0 interface. The clock rate is missing from the interface. If there are any problems with the configuration of the interfaces, record any commands that will be necessary to correct the configuration errors. To: If there are any problems with the configuration of the interfaces, record any commands that will be necessary to correct the configuration errors.

Change: router eigrp 2 passive-interface FastEthernet0/0 network 209.165.202.136 0.0.0.3 network 172.18.129.0 0.0.0.7 no auto-summary To: router eigrp 2 passive-interface FastEthernet0/0 network 209.165.202.128 0.0.0.3 network 209.165.202.136 0.0.0.3 network 172.18.129.0 0.0.0.7 no auto-summary

Answer key for PT 9.7.1.3 Correct the initial configurations for router ISP to include the follwoing: ip classless ip route 10.1.32.0 255.255.252.0 Serial0/0/0 ip route 172.20.0.0 255.255.255.224 Serial0/0/0 Change: Step 1: Use the 192.168.157.0/22 address to create an addressing scheme to accommodate all hosts on the network. To: Step 1: Use the 192.168.156.0/22 address to create an addressing scheme to accommodate all hosts on the network. Begin the address assignments with the 192.168.157.0 address. Change: 189.54.68.254 To: 189.54.69.254 Change: Use Process ID 1and advertise all directly connected networks in OSPF Area 0. Do not advertise the loopback interface on the ISP router. To: Use Process ID 1and advertise all directly connected networks in OSPF Area 0. Advertise the loopback interface on the ISP router.

Change: Confirm that the DR/BDR election took place and that the Remote_2 router is the DR, Remote_1 is the BDR and the ISP router is the DROTHER. To: Confirm that the DR/BDR election took place and that the Remote_1 router is the DR, Remote_2 is the BDR and the ISP router is the DROTHER.

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June 23, 2008

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Error

out" link located at the bottom of a course page. When you hover over the "cpu" box a popup comes up showing the definition for Ram. It needs to have the correct definition for cpu. In the animation it shows PC1 and PC2, but the chapter text mentions PC3 twice. It should be PC2, change both errors.

Incomplete sentence in Task 6, Step 6, last sentence. (page 8 of lab 1.5.1)

Lab 1.5.1: Page 2, Task 1, Step 1, 1st sentence. Incorrect name used for switch.

Instructors Lab 1.5.3.1, Task 7 Reflection, both .pdf and .doc files have this error: There are repeated sentences in the answers key.

The text that pops up next to R1 and R2 is appearing in the wrong place. Text next to R2 should appear next to R1 and visa versa. Also, please enclose text in a balloon and attach to router as shown in screenshot-1 and screenshot-2. Do not add the blue arrows shown in screenshot-2. This is from a static version of the animation which shows direction. Missing the word "not" in sentence. 3rd last paragraph, last sentence.

Lab 2.8.1: Page 9, Task 5, step 1. 2.8.1.1 Lab activity, Task 5, Step 1. The incorrect PC is referenced, it should not ask to have PC2 configured.

This error is in both instructors and students lab file. Also in the .doc version of the lab. Lab 2.8.1, page 19, Task 14, item 1. The word "reply" in the sentence is incorrect. Lab 2.8.1: Page 13, Task 8, step 3, 3rd sentence.

3 instruction errors listed from the NCL ticket for the PT activity.

Incorrect IP address in instructor answer key

Interface Fa0/1 should be Fa0/0 in both student and instructor lab.

Task 1 Step 1: The questions ask both the number of subnets and the maximum number of IP addresses that are needed for a single subnet. The table lists 16 rows, so some student are mistakenly trying to maximize the number of hosts. The problem is not clear the students should be basing the subnetting on the maximum number of hosts. The lab activity Addressing Table is missing the ISP s0/0/0 address

The lab activity Addressing Table has incorrect HQ serial interface number. The lab activity Addressing Table has incorrect East serial interface number. The lab activity Addressing Table has incorrect West serial interface number. Task 1 Step 1: The questions ask both the number of subnets and the maximum number of IP addresses that are needed for a single subnet. The table lists 16 rows, so some student are mistakenly trying to maximize the number of hosts. The problem is not clear the students should be basing the subnetting on the maximum number of hosts. Heading R3: Serial 0/0/0 is not the correct interface for 10.3.0.0

The Interface for R3 is S0/0/1 in the topology, but the chart indicates S0/0/0. Heading R3: Serial 0/0/0 is not the correct interface for 10.3.0.0

Heading R3: Serial 0/0/0 is not the correct interface for 10.3.0.0

The label for the branch in Region 4 is incorrect in the graph/flash animation. Last paragraph. The text class the router "router C" but the graphic and flash animation call it "router 3".

The graphic is highlighted on the wrong place.

One sunbet mask in topology and address table does not match.

Incorrect subnet addresses for interfaces: R1 Fa0/0, S0/0/0; R2 - Fa0/0, S0/0/0. Link is not correct

Last 3 sentences on the page: 172.16.0.0/14 should be 172.16.0.0/13 as the /14 does not include the 172.22.n.n network.

In the Scenario, under the West Network Section the number of hosts are wrong (correct in the diagrams however), and the LAN 1 & 2 descriptions are reversed from normal order.

PT file 6.4.2 in CCNA Exp: Routing: mistype in answer network. In the Scenario, under the West Network Section the number of hosts are wrong (correct in the diagrams however), and the LAN 1 & 2 descriptions are reversed from normal order.

Question 8, under the question, on the left, it says "from 2.5", is this correct?

Question 8, in the answer, the last # in IP is in binary octet, but there are only 7 bits. Shouldn't there be 8 bits? After clicking "R1 Routes" button, the text at the bottom of the graphic reads "R3 has routes to local 172.30.0.0 subnets only." This is incorrect.

The graphic page on 7.1.3.3 show/assume every other packet getting lost due to Rip v1 not dealing with discontiguous networks. However, the output only works that way if the hardware doesn't support IP CEF. By default the 1841 routers have ip cef on, and the packets for a ping all succeed or all fail, since ip cef caches the route and doesn't load balance between the entries per packet. The lab page on 7.5.1.1, Task 3, Step 2, show/assume every other packet getting lost due to Rip v1 not dealing with discontiguous networks. However, the output only works that way if the hardware doesn't support IP CEF. By default the 1841 routers have ip cef on, and the packets for a ping all succeed or all fail, since ip cef caches the route and doesn't load balance between the entries per packet.

The PC icons are incorrectly labeld. The names need to be swapped. Question 10 from chapter summary, page 7.6.1.2, has an incorrect IP address in the answer.

For all 3 diagrams showing R2 router output, the number of child router is not 1, it is 2. Missing text in graphic for Child Route Subnet 172.16.3.0. The diagrams shows the number of child router as 1, it is 2. The topology diagram in the Flash activity shows both R1 s0/0/0 and R2 s0/0/0 with an ip address of 172.16.2.1/24. Similarly for R2 and R3 on s0/0/1 (192.168.1.2). The .1 and .2 referring to R2's Serial interfaces should be interchanged. The text in the routing table output is correct and refers to R2 as 172.16.2.2 not 172.16.2.1.

The table in middle of the graphic describes 192.168.1.0/24 as a level 1 Parent Route. However, level 1 parent routes do not have exit interfaces (or next-hop addresses), which this does have, as shown at the top of the graphic. The word "Classful" in the graphic title for when you click on buttons" Router Output", "Topology" and "R2 Routing Table" is incorrect as the page and graphic information is about classless routing.

Click on button "Query & Reply. The text headings are mixed in with the text.

In the command just above the last paragraph tos should be italic and not bold. tos is a parameter. The title of the graphic says "R3 Routing Table", but instead the Show IP Protocols for R1 is shown. The text is discussing K values. 2nd paragraph, first sentence: EIGRP takes the bandwidth value in kbps and divides it by a reference bandwidth value of 10,000,000." But it's the reference bandwidth which is divided by the bandwidth.

On the playback of flash media, text conflict with the chapter text. 3014400 should be the Feasible Distance to the destination network. On the playback of flash media, text conflict with the chapter text. 41026560 should be the Feasible Distance to the destination network. If there is no "Feasible Successor", and the query returns "One or More New Routes", it doesn't show it installing the successor in the routing table. (That only happens in the flow chart if there is a Feasible Successor.) But it also happens when a new route is found.

Page 7 of this lab. The instructions for Task 8, Step 1 and Step 3 state: Use the show ip interface command to view... BUT the command at R1 is, R1#show interface serial0/0/0 On 9.7.1 PT file, there is an error in the answer network. The result of the /28 is you cannot ping the serial interfaces on the B2-B3 WAN link. The document that is linked at the bottom of this page is not properly formated in the browser window. Graphic shows 64kbps link with cost of 64. Previous section shows that the cost for this should be 1562. The next section explains that the physical and actual bandwidth can be different however. But at this stage of the graphic, the student does not know this and can be confused. Rather explain the possible different WITH the graph. Switches in LANs, as in the graphic, do not broadcast all frames automatically.

In the Multiaccess graphic, the Loopback 0 for router A is shown with a subnet mask of /3, but the correct number should be /32, just like the other two routers. Change the text of the fifth para after the 'Click New Router in the figure' instruction to the following: RouterD joins the network. If a new router enters the network after the DR and BDR have been elected, it will not become the DR or the BDR even if it has a higher OSPF interface priority or router ID than the current DR or BDR. The new router can be elected the BDR if the current DR or BDR fails. If the current DR fails, the BDR will become the DR, and the new router can be elected the new BDR. After the new router becomes the BDR, if the DR fails, then the new router will become the DR. The current DR and BDR must both fail before the new router can be elected DR or BDR. In the para 8 after the 'Click New DR Fails in the figure' instruction, delete the first sentence: Only after both the DR and the BDR fail will the DR and BDR routers change.

In the graphic; "R1 After" output, there are 2 incorrect cost values and one incorrect IP address used

The last paragraph: The cost to the route to 10.10.10./24 via 192.168.10.6 is incorrectly calculated.

The word "no" is missing from an instruction. Page 8, Task 6, step 7: Dynamic routing protocols has incorrect definition.

Incorrect acronym used in sentence and wording needs to be corrected.

Change: You must also make sure that the Remote_1 router never takes part in the DR/BDR election. To: You must also make sure that the Remote_2 router never takes part in the DR/BDR election. in the EIGRP lab, For Remote2 in Task 2, Step 3 has incorrect instructions. In the OSPF lab, Learning Objectives section, the sixth objective is incorrectly stated. In the OSPF lab, Task 2, Table 2: The subnet mask for the Ethernet network in the topology is listed as 255.255.255.252 and should be 255.255.255.248.

In the OSPF lab, Task 1, Table 1: The subnet mask for the Ethernet network in the instructors answer key is listed as 255.255.255.252 and should be 255.255.255.248.

In the OSPF lab, Task 4 Step 4 states that the student should reload the "Switch". Students have not covered this skill and may find the instructions confussing. In the OSPF lab, Below the "Scenario" heading, the last sentence states that authentication must be set on the router. This is not covered in the course at this time nor does the lab actually have the student do this. in the EIGRP lab, The 10.10.10.0/29 in the topology graphic is not used in the exam in the EIGRP lab, There is a stray reference to FA0/0 on the left side of Router2 in the topology graphic. Both the Instructor and Student versions of the .doc and .pdf files for the OSPF SBA have a disagreement on the router names between the instructions and the graphic. Router names in the graphic should be change to match router nems used in the instruction.

Correction

Prod Date

Correct popup to show definition for CPU. "Central processing unit is the brain of the Feb-08 computer. The CPU is where most calculations take place by interpreting computer program instructions and processing data." Feb-08 6th paragraph Change: After making its routing decision, router R1 forwards the packet destined for PC3 to router R2. To: After making its routing decision, router R1 forwards the packet destined for PC2 to router R2.

8th paragraph Change: Router R2 was able to forward the packet toward PC3's destination network. To: Router R2 was able to forward the packet toward PC2's destination network.

Change: When both the enable password and enable secret passwords are configured, the To: When both the enable password and enable secret passwords are configured, the router expects the password as defined in the enable secret command. In this case, the router ignores the password defined in the enable password command.

Feb-08

Feb-08 Change: Use a straight-through Ethernet cable to connect the FastEthernet 0/0 interface of the R1 router to the FastEthernet 0/1 interface on the R1 switch. To: Use a straight-through Ethernet cable to connect the FastEthernet 0/0 interface of the R1 router to the FastEthernet 0/1 interface on the S1 switch.

Change: R1 cannot ping the FastEthernet interface on R2. R1 cannot ping the FastEthernet interface on R2. PC1 cannot ping PC2. PC2 cannot ping PC1.

Feb-08

To: R1 cannot ping the FastEthernet interface on R2. PC1 cannot ping PC2. PC2 cannot ping PC1. Correct text positions as noted.

Feb-08

Change: If you do correctly set the clock rate, then line protocol (the Data Link layer) Feb-08 will not change to up. To: If you do not correctly set the clock rate, then line protocol (the Data Link layer) will not change to up. Change: Step 1: Configure the host PC2. To: Step 1: Configure the host PC1. Change: Configure the host PC2. To: Configure the host PC1.

Feb-08 Feb-08

Change: The ICMP process on PC3 formulates a ping request to PC2 and sends the Feb-08 reply to the IP process. To: The ICMP process on PC3 formulates a ping request to PC2 and sends the request to the IP process. Change: The pings will arrive at PC2 if you have configured and verified all devices through Task 6, "Gather Information." To: The pings will arrive at PC2 if you have configured and verified all devices through Task 7, "Gather Information."

Feb-08

Feb-08 1. Task 3, step 3, question 1 Change: An interface will not come up unless it detects a link beat a carrier detect signal at the physical layer from another device. To: An interface will not come up unless it detects a link beat (a carrier detect signal) at the physical layer from another device.

2. Task 7, Step 4 Change: Since the frame is HDLSHDLC, R2 strips off the header and looks up the destination IP address of ___________________ in its routing table. To: Since the frame is HDLC, R2 strips off the header and looks up the destination IP address of ___________________ in its routing table. 3. Task 7, Step 6, question 8 Change: What is the "next hop" address R2 would send a packet destined for the 192.168.2.0/24 network is 192.168.1.1? To: What is the "next hop" address R2 would send a packet destined for the 192.168.2.0/24 network?

The topology diagram at the start of the lab, it has an incorrect IP address in the instructor answer key.

Feb-08

Between routers HQ and Branch Change: 192.168.1.128/26 To: 192.168.2.128/26 Page 3, Task 2, Step 2, item 2: Change: Assign second subnet to LAN connected to the Fa0/1 interface of BRANCH2. To: Assign second subnet to LAN connected to the Fa0/0 interface of BRANCH2.

Feb-08

NOTE: This problem is also in PT 3.5.2.2 instructions. Change: Subnet the 172.16.0.0 network into the appropriate number of subnets.

Feb-08

To: Subnet the 172.16.0.0 network based on the maximum number of host required by the largest subnet.

Add Row to Addressing Table for ISP with S0/0/0, IP address = 209.165.200.227, subnet mask = 255.255.255.224, default gateway = N/A

Feb-08

Change: HQ S0/0/2 To: HQ S0/1/0 Change: East S0/0/2 To: East S0/1/0 Change: West S0/0/2 To: West S0/1/0 Change: Subnet the 172.16.0.0 network into the appropriate number of subnets.

Feb-08 Feb-08 Feb-08 Feb-08

To: Subnet the 172.16.0.0 network based on the maximum number of host required by the largest subnet.

Change: 10.3.0.0 available through interface Serial 0/0/0 To: 10.3.0.0 available through interface Serial 0/0/1

Feb-08

Change the Interface for R3 Network 10.3.0.0 from S0/0/0 to S0/0/1 to match the topology, text, and other TIs in this section Change: Sends an update about network 10.4.0.0 out the Serial 0/0/0 interface To: Sends an update about network 10.4.0.0 out the Serial 0/0/1 interface

Feb-08

Change: Sends an update about network 10.4.0.0 out the Serial 0/0/0 interface To: Sends an update about network 10.4.0.0 out the Serial 0/0/1 interface

Feb-08

Feb-08

Feb-08 Change: R2-R4 To:B2-R4 Change: When network 10.4.0.0 becomes unavailable and router C becomes aware Feb-08 of that, it sends out the information to its neighbors. To: When network 10.4.0.0 becomes unavailable and router 3 becomes aware of that, it sends out the information to its neighbors.

What should be highlighted in orange is: Serial0/0/0 1 1 2 Serial0/0/1 1 1 2 192.168.3.0 FastEthernet0/0 In the table, for R2 Fa 0/0: 10.1.0.1 Change: 255.255.255.0 To: 255.255.0.0

Feb-08

Change: 172.168.1.0/24, 172.130.2.0/24 and 172.168.3.0/24 To: 172.30.1.0/24, 172.30.2.0/24 and 172.30.3.0/24 Change: http://www.ietf.org/rfc/rfc1519

Feb-08 Feb-08

To: http://www.ietf.org/rfc/rfc1519.txt Change: Let us assume that router X has a specific route for 172.22.0.0/16 using Serial 0/0/1 and a summary route of 172.16.0.0/14 using Serial0/0/0. Packets with the IP address of 172.22.n.n match both route entries. These packets destined for 172.22.0.0 would be sent out the Serial0/0/1 interface because there is a more specific match of 16 bits, then with the 14 bits of the 172.16.0.0/14 summary route.

Feb-08

To: Let us assume that router X has a specific route for 172.22.0.0/16 using Serial 0/0/1 and a summary route of 172.16.0.0/13 using Serial0/0/0. Packets with the IP address of 172.22.n.n match both route entries. These packets destined for 172.22.0.0 would be sent out the Serial0/0/1 interface because there is a more specific match of 16 bits, then with the 13 bits of the 172.16.0.0/13 summary route.

Change: • The NW-BR1 (Northwest Branch1) LAN2 will require 200 host IP addresses. • The NW-BR1 (Northwest Branch1) LAN1 will require 200 host IP addresses. To: • The NW-BR1 (Northwest Branch1) LAN1 will require 2000 host IP addresses. • The NW-BR1 (Northwest Branch1) LAN2 will require 2000 host IP addresses.

Feb-08

Correct the answer file with the correct IP address Change: Answer network for North-East router's s0/0/0 requires 172.6.47.10 To: Answer network for North-East router's s0/0/0 requires 172.16.47.10

Feb-08

Change: • The NW-BR1 (Northwest Branch1) LAN2 will require 200 host IP addresses. • The NW-BR1 (Northwest Branch1) LAN1 will require 200 host IP addresses. To: • The NW-BR1 (Northwest Branch1) LAN1 will require 2000 host IP addresses. • The NW-BR1 (Northwest Branch1) LAN2 will require 2000 host IP addresses.

Feb-08

Because this is chapter 6, the reference should be from chapter 6.

Feb-08

Add extra bit.

Feb-08

Change: R3 has routes to local 172.30.0.0 subnets only. To: R1 has routes to local 172.30.0.0 subnets only.

Feb-08

A note should be put in the 7.1.3.3 curriculum page. "For some routers you will need Feb-08 to disable ip cef to see the results as shown."

A note should be put in the 7.5.1.1 lab. "For the 1841 router you will need to disable ip cef to see the results as shown."

Feb-08

Add the following note before the question "From the R2 router, how many ICMP messages are successful when pinging PC1? ": "Note: For the 1841 router, you will need to disable IP CEF to obtain the correct output from the ping command. Although a discussion of IP CEF is beyond the scope of this course, you may disable IP CEF by using the following command in global configuration mode: R2(config)#no ip cef" Rename PC1 to PC2 and PC2 to PC1. ALso adjust the grading of the avtivity for these changes, ie default gateway.. Change: Yes. When R2 receives both routing updates, it will include both the summary router 172.16.0.0/16 forwarding packets to R3 and the specific subnets 172.30.1.0/24 and 172.30.2.0/24 forwarding those packets to R1.

Feb-08 Feb-08

To: Yes. When R2 receives both routing updates, it will include both the summary router 172.30.0.0/16 forwarding packets to R3 and the specific subnets 172.30.1.0/24 and 172.30.2.0/24 forwarding those packets to R1. For all 3 R2 router output diagrams. Change: 172.16.0.0/24 is subnetted, 1 subnets To: 172.16.0.0/24 is subnetted, 2 subnets

Feb-08

Add to diagram: Ultimate Route

Feb-08

Change: 172.16.0.0/24 is subnetted, 1 subnets To: 172.16.0.0/24 is subnetted, 2 subnets For R2 interfaces: On S0/0/0 change .1 to .2 On S0/0/1 DCE change .2 to .1

Feb-08 Feb-08

Change: Level 1 Parent Route To: Level 1 Route

Feb-08

For these titles, Change: Example: R2 Operating with Classful Routing Behavior To: Example: R2 Operating with Classless Routing Behavior

Feb-08

Change: Query packet - Used by DUAL when searching for networks or other tasks. Reply packet - Automatically sent in response to Query packet Acknowledgement (ACK) packet - Automatically sent back when reliable RTP is used To: Query packet - Used by DUAL when searching for networks or other tasks Reply packet - Automatically sent in response to Query packet Acknowledgement (ACK) packet - Automatically sent back when reliable RTP is used

Feb-08

Change: Router(config-router)#metric weights tos k1 k2 k3 k4 k5 (note, tos is bolded) Feb-08 To: Router(config-router)#metric weights tos k1 k2 k3 k4 k5 (note, tos is italic) Graphic title. Change: R3 Routing Table To: R1 K Values

Feb-08

Change: EIGRP takes the bandwidth value in kbps and divides it by a reference bandwidth value of 10,000,000. To: EIGRP takes the reference bandwidth of 10,000,000 and divides it by the bandwidth value in kbps.

Feb-08

Change: Feasible Distance to Successor To: Feasible Distance to the Destination Network

Feb-08

Change: Feasible Distance to Feasible Successor (pointing to 41026560, latter part of animation) To: Feasible Distance to Destination Network.

Feb-08

Change "One or More New Routes?" so it points to "Install Successor in Routing Table"

Feb-08

Change: Use the show ip interface command to view... To: Use the show interface serial0/0/0 command to view...

Feb-08

For the ISP, in the answer file. Change: 172.20.0.0/28 To: 172.20.0.0/27

Feb-08

add ".txt" to the end of the link so that the link references the file directly and opens properly formatted

Feb-08

There is information at the top of page 11.3.1.1 but I can see how a student could not Feb-08 understand this at this point in the course. It is not well explained with examples. Either change the "64 kbps" in the graphic to "T1" so it matches the chart from page 11.3.1.1 or explain why there is this diference compaired to the chart on page 11.3.1.1. Decided to change to "1.544 Mbps" to conform to the other data rates 3rd sentence: Change: They are broadcast networks because all devices on the network see all frames. To: They are broadcast networks because all devices on the network see all broadcast frames.

Feb-08

Change: Lo0 192.168.31.11/3 To: Lo0 192.168.31.11/32

Feb-08

Feb-08

Change: 192.168.10.8 [100/104597] via 192.168.10.6, 00:01:33, Serial0/0/1 To: 192.168.10.8 [100/117187] via 192.168.10.6, 00:01:33, Serial0/0/1

Feb-08

Change: 10.10.10.0/24 [100/65635] via 192.168.10.2, 00:01:33, Serial0/0/1 To: 192.168.10.8 [100/117287] via 192.168.10.6, 00:01:33, Serial0/0/1 Change: After configuring a new reference bandwidth, the cost for the same route is Feb-08 now 65635. To: After configuring a new reference bandwidth, the cost for the same route is now 117287. Change: R1(config-router)#router-id 10.4.4.4

Feb-08

To: R1(config-router)#no router-id 10.4.4.4 Feb-08 Change: Routing that adjusts automatically to network topology or trafic changes. Also called adaptive routing. To: Allow network devices to learn routes dynamically. RIP and EIGRP are examples of dynamic routing protocols.

Change: ABR located between an OSPF autonomous system and a non-OSPF network.

Feb-08

To: A ASBR is located between an OSPF autonomous system and a non-OSPF network. Change: You must also make sure that the Remote_1 router never takes part in the DR/BDR election. To: You must also make sure that the Remote_2 router never takes part in the DR/BDR election.

Feb-08

For both student SBA lab and instructor SBA lab: Change: Step 3: Configure EIGRP Feb-08 on the Remote2 router but only advertise the serial interface. To: Step 3: Configure EIGRP on the Remote2 router. For both student SBA lab and instructor SBA lab: Change: Configure OSPF authentication To: Verify OSPF operation

Feb-08

For both student SBA lab and instructor SBA lab: For the ISP router interface Fa0/0 Change: 10.10.10.1 255.255.255.252 To: 10.10.10.1 255.255.255.248

Feb-08

For the Remote_1 router interface Fa0/0 Change: 10.10.10.3 255.255.255.252 To: 10.10.10.3 255.255.255.248 For the Remote_2 router interface Fa0/0 Change: 10.10.10.2 255.255.255.252 To: 10.10.10.2 255.255.255.248

For instructor SBA lab: For the ISP router interface Fa0/0 Change: 10.10.10.1 255.255.255.252 To: 10.10.10.1 255.255.255.248

Feb-08

For the Remote_1 router interface Fa0/0 Change: 10.10.10.3 255.255.255.252 To: 10.10.10.3 255.255.255.248 For the Remote_2 router interface Fa0/0 Change: 10.10.10.2 255.255.255.252 To: 10.10.10.2 255.255.255.248 For both student SBA lab and instructor SBA lab: Change: Step 4: Reload the switch to force the OSPF election process.

Feb-08

To: Step 4: Reboot the switch using the reload command to force the OSPF election process. For both student SBA lab and instructor SBA lab: Remove: Authentication must also be set so that a rouge router cannot connect to the network and propagate false routes into the network.

Feb-08

For both student SBA lab and instructor SBA lab: Remove the 10.10.10.0/29 from the Feb-08 lab topology diagram. Feb-08 For both student SBA lab and instructor SBA lab: Remove the FA0/0 from the left side of Router2 on the lab topology diagram. Change: RouterA To: Remote_1 Change: RouterB To: Remote_2

Feb-08

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Error The last paragraph, last sentence has a closing parenthesis, but no opening parenthesis. Remove ending parenthesis. The word should be a glossary link since it is the first time it appears in the curriculum: LAN Check glossary entry to determine if a change can be made to location or spelling to see if term will highlight in the text. Remove blank line after "How Routers Work". A reviewer states that the definition of media is too brief. Are you ok with the following definition of it in the glossary, or do you have a better one that you would like me to insert? Thanks. "In the context of this course media is the plural form of medium."

See screenshot-1. The numbers for Flash should be "32, 64...", not "32.64".

add p to expandable in SDRAM DIMMs box In 3rd box on the left, was "32.64 or 128 MB" on AC; "32, 64 or 138 MB" on review site fix hanging text in "Boot ROM" and "SDRAM DIMMs" boxes remove bullet from bullet 3 under "ROM" For each graphic on this page, remove the 7, as shown in screenshot-1. Add "or Enter Setup Mode" as part of Step 6, as shown in screenshot-2. Under "Location of IOS", 2nd paragraph, typo "bootstrap"

Extra line space between heading "WAN Interfaces" and preceding paragraph.

The text incorrectly shows some shortcuts that could confuse students: The text and graphic state: R1(config)#line console 0 R1(config-line)#password cisco R1(config-line)#login R1(config)#line vty 0 4 R1(config-line)#password cisco R1(config-line)#login

The title of PT activity is "Comprehensive Routing Simulation", and that is different from the title on the content page, "Routing Table Principles".

The Activity titles on the launch pages do not match the PT activity tilts for 1.3.5, 1.4.2, and 1.4.3. 2nd paragraph, 4th sentnece: There is an exra space in "(TTL)".

See screenshot-1. Change the PT title to: Determine Best Path using Routing Tables PT Title is Wrong

The title of the PT activity is "Discovering Packet and Frame Fields", and that is different from the title on the content page, "Best Path Metric".

See screenshot-1. Change the PT title to: Equal Cost Load Balancing PT Title is Wrong

The title of the PT activity is "Determine Best Path using Routing Tables", and that is different from the title on the content page, "Equal Cost Load Balancing".

6th paragraph (Starts with "No Route Determined..."): There is a paragraph break after this paragraph on AC, but not on review site.

3rd paragraph (Starts with "One of three..."), 1st sentence, there is a paragraph break after this paragraph on AC, but not on review site.

From bottom, 2nd paragarph, last sentence, typo "encapsulated"

The speech bubble keeps referring to a "packet" being sent to a MAC address; frames are sent over the connection.





From bottom, 2nd paragarph, first sentence, typo "decapsulation" Change: To: In Question 2 Answer, #6, typo "Configuration" The router labels and LSA labels are wrong. Fix according to attached screenshot-1, screenshot-2, and screenshot-3. (Do not add blue arrows as shown in the screenshots. These are used only in static versions of the animation to show direction) In the text, change reference to R1 in "R1 sends out an LSA" to R2. The text that pops up next to R1 and R2 is appearing in the wrong place. Text next to R2 should appear next to R1 and visa versa. Also, please enclose text in a balloon and attach to router as shown in screenshot-1 and screenshot-2. Do not add the blue arrows shown in screenshot-2. This is from a static version of the animation which shows direction. Immediately before the text 'Click Clock Skew in the figure.", please insert the following text: The next two animations illustrate these concepts. Please note that while in reality, all bits, whether on a serial or parallel connection, travel at the speed of light, the animations show the bits on the parallel connection moving slightly slower than those on the serial connection. This is simply to help illustrate the concepts point more clearly.

[Address Table] tab, typo on table header, "Interface".

The text discusses a CDP activity that has nothing to do with the activity on this page. Replace the text with the following: Use the Packet Tracer Activity to practice configuring serial interfaces. In a lab environment, we use a serial crossover cable to directly connect two routers through their serial ports. The router connected to the DCE end of the cable will provide a clock signal. This activity will show how to configure IP information and a clock signal on router serial interfaces.

The text on this page is wrong. It refers to a CDP PT activity. This activity is about configuring serial interfaces.

The text discusses a CDP activity that has nothing to do with the activity on this page.

The text has nothing to do with the activity. Replace the text with the following copy: Use the Packet Tracer Activity to explore the features of the Cisco Discovery Protocol (CDP). Practice enabling and disabling CDP - globally and on a per-interface basis. Investigate the power of using CDP to discover the topology of a network. The text on this page is wrong. It refers to the Ethernet PT activity. This activity is about CDP.

The text has nothing to do with the activity.

There should be a paragraph space between the 3rd paragraph and the header "Disabling CDP"

The last paragraph states "Again, referring to the figure, we would configure a static route on R1 to the LAN attached to R2" There is no LAN on R2. The LAN is on R1.

In topic title, "Routing Table Principles and Static Routes", a space is missing between "Routing" and "Table".

In the after graphic (Click after button), the show ip route displays "Gateway of last resort is not set", yet there is a static default route. The Instructor Lab answer for the Task 8, Step 2, question,"What interface will R3 use to forward packets to the 172.16.1.0/24 network?", says Serial 0/0/0. There is no S0/0/0 in use on this router. This is also true for the answers in the table right below it. The hands-on lab title is different on two sites, the title shown on AC matches the title shown on PDF. The lab demonstrates how to troubleshoot a router configuration using the 1841 Cisco router. The error that needs to be removed regards leaving the clock rate off of a serial interface. With the 1841/2811, the interface will still work without a configured clock rate. Using no clock rate for an error on the actual routers will not work. In the companion Packet Tracer activity, this error will cause the interface to be shutdown. Need to correct the Lab but leave the Packet Tracer activity as it is. Question 13: In the answer, there are paragraph breaks under first two bolded phrases on review site. There are no paragraph break under first two bolded phrases on AC.

There should be a paragraph break between 3rd paragraph (counted from the bottom of the page) and the heading for the paragraph below it

Yellow envelopes are missing text.

Under "Dynamic Routing Protocol Operation", 1st paragraph, 3rd sentence, "The operations of a dynamic routing protocol varies depending upon the type of routing protocol and the routing protocol itself."

Bullet 5, should end with period, not comma.

The activity cannot be fully completed and the network tested because AS3_Router_14 is not connected by serial cable to the rest of the network, and the connectors function is locked. Texts runs out of boxes (4 of them); also, in the label in the bottom middle, last word was half hidden under the animation control bar.

Add line space between last 2 full paragraphs.

1st paragraph and 2nd paragraph need a paragraph break between them.

After clicking the AD link, the glossary shows "Administrative domain. A group of hosts, routers, and networks operated and managed by a single organization." Obviously Administrative Domain is different from Adminsitrative Distance. Please consider revising the definition in glossary.

The text refers to route 192.168.6.0. The show ip rip database router output has the 192.168.8.0 route incorrectly highlighted. Change media title from "Viewing Routing Table Information - " To: "Viewing Routing Table Information - show ip route" Task 1 Step 1: The "Note" incorrectly states that the AD for the static route 192.168.2.0 [1/0] is 0.

The lab title in the PDF is "Subnetting Scenario 1" and is different from the lab title on the content page, "Subnetting Scenario 1 with Static Routing". Titles need to match. Lab title in PDF is "Subnetting Scenario 2" and is different from the lab title on content page "Subnetting Scenario 2 with Static Routing". Titles need to match. Scenario on page 2 of the pdf states The link from HQ to Branch 3 will require an ip address for each end of the link. There is no Branch 3.

1st paragraph, 1st sentence, "The dynamic routing chapters of this course focuses on Interior Gateway Protocols (IGPs)."

Add blank line between "to all neighbors." and "Neighbors are routers". 2nd paragraph, 2nd sentence, "All three router send their routing tables to their neighbors, which at this point only contains the directly connected networks. ", router should be plural, routers.

Remove italics from "split horizon".

2nd paragraph, 1st bullet, "How quickly the routers propagates a change in the topology in a routing update to its neighbors." Change: "How quickly the routers propagates a change in the topology in a routing update to its neighbors. " To: "How quickly the routers propagate a change in the topology in a routing update to its neighbors. "

The marked correct answer (Option 2) states that the variable subtracts a random length of time ranging from 0 to 15% The curriculum and companion guide both state that the variable ADDS a random length of time. The curriculum is the source of the error.

3rd paragraph, 1st bullet, it seems the word "prevent" does not need "s". Change: "Supports split horizon and split horizon with poison reverse to prevents loops." To: "Supports split horizon and split horizon with poison reverse to prevent loops." Add line space after heading RIP.

The lab titles are different. The PDF lab is "Routing Table Interpretation Lab" and the content page lab is called "Lab Activities". In the answer for question 3: first and third sentences: There is no period at the end of sentences.

PT title: CH4 - Packet Tracer Skills Integration Challenge.

In the first question: delete the periods at the end of the choices.

[Router Output] # [3] tab, on the orange bar, (1) 1st line, text is bolded and without dash on AC; (2) 3rd line sentnece, on review site, need a space after "-"; (3) 3rd line sentnece, font used for "Redistributing: rip" is different between AC and review site (command style font vs non command style font).

In the topology graphic, R3's S0/0/1 address is shown as .1. This is incorrect. In the topology graphic, R3's S0/0/1 address is shown as .1. This is incorrect. Add space between last paragraph and first scenario. In Task 1, Step 2, there is no line for the fourth subnet to be written. In Task 2, Step 1, #4, the IP Address is incorrect: 209.165.200.224/27. In Task 2, Step 1, #3, the IP Address is incorrect: 209.165.200.224/27. In the Instructor document, Task 3: Step 2, there is a typo in the given solutions. "intesface Fa0/0" should be "interface FA0/0" In the Instructor document, Task 3: Step 2, there is a typo in the given solutions. "intesface Fa0/0" should be "interface FA0/0" PT file and link: both have the word "Activity" at the end of the title, but the page title does not.

Remove the periods at end of answers to 1, 6, 7, and 9.

Classful IP addressing def: Change n the .... To: In the ....

2nd paragraph, last sentence "classful IP addressing" is marked as a glossary term on review site, but not on AC.

2nd paragraph, last sentence is not a complete sentnce Change: "The ability for routes to be summarized as a single route and helped reduce the size of Internet routing tables. " To: "The ability for routes to be summarized as a single route helps reduce the size of Internet routing tables. " The summary route "172.16.0.0" advertised to R3 needs the CIDR notation. Add blank line before Note: When you click on the "Step 2" button, the middle of the screen shows "Step 2: Count the number of left-most matching bits to determine the mask.14 matching bits, /14 or 255.252.0.0". There needs to be a space between mask and 14.

Space needed below 1st heading Add blank line between step 1 heading and paragraph Add blank line between step 3 heading and paragraph Task 2, Step 3, Question 3 - The number "30" is below the question. Not sure if that is supposed to be there.

Question 7, in the answer, typo "VLSM" not "VSLM".

Question 9, 1st sentence in the question reads "172.16.10.0/24 is network is using the following /28 subnets for LANs:". Is this sentence grammatically correct?

Question #8 - sentence needs rewriting, and needs a "?" at the end. Currently, the question is: "The 172.16.0.0/16 network is subnetted using a /24 subnet mask. What could we do if we needed divide the 172.16.10.0/24 subnet into three equal subnets the maximum number of hosts." Can you correct this to make sense according to the curriculum? Thanks.

There is an extra line space between last 2 paragraphs.

Add blank line after first heading.

Add line space between last 4 "Click...figure." and proceding paragraphs. . Change title from: Packet Tracer Exploration: Which Router Has the Correct Default Route to: Activity 7.4.3: Routing Table Corruption The name of the PT activity should be about Routing Table Corruption.

In both the Instructor and student version of the lab document, the show ip router output under Task 7 has a typo. In the last line of the output, remove the R2# at the end of the line. Change title in media to "RIPv2 Basic Configuration Lab ". Task 3: space needed between steps 5 - 7

Adjusted spacing in the document for the Instructor and Student Lab documents and corrected typo on the last page: "boundaries,." should be "boundaries." Change title in media to "RIPv2 Challenge Configuration Lab". The default gateway for PC2 in "Addressing Table" is incorrect.

The lab demonstrates how to troubleshoot a router configuration using the 1841 Cisco router. The error that needs to be removed regards leaving the clock rate off of a serial interface. With the 1841/2811, the interface will still work without a configured clock rate. Using no clock rate for an error on the actual routers will not work. In the companion Packet Tracer activity, this error will cause the interface to be shutdown. Need to correct the Lab but leave the Packet Tracer activity as it is.

The title is "RIPv2 Troubleshooting" for both the content page and the PT activity.

Change title in media to "Packet Tracer Skills Integration Challenge Activity".

Delete the periods from choices in questions: 2, 5, 6, 7 and 8. Add blank line above Step 2b, Step 3a, Step 3b Add blank line after "Click Play.." heading. Second para, 1st sentence is... The first match that occurs is with the level 1 parent route, 172.16.0.0. Remember, with non-VLSM subnets the classful mask of the parent is now displayed. Should be... The first match that occurs is with the level 1 parent route, 172.16.0.0. Remember, with non-VLSM subnets the classful mask of the parent is not displayed. The difference is the word "now" should be "not" Add blank line before and after "Click 2.." heading. SMT - Also a blank line missing before subheading "Zero CIR". Insert line space before "Click Step 3a in the figure." The graphic shown when you click on the "Drop Packet" button is not correct. In the top of the graphic, Destination of IP Packet" has a red line through it and that should not have a red line. In the second table this graphic has no red lines drawn through any of the IP addresses. There needs to a red line drawn through the all four IP addresses all the way across through the bits. Also, at the bottom right of the graphic, the text "First 24 bits match" is incorrect.

Add blank line before "The Route.." heading Add blank line after "Click Step 3." heading Add blank line before "Click Step 3a." heading Add blank line after "Click Step 3b." heading Add blacnk line after "Click Step 5." heading Insert line space before "Classful Route on R3". The show ip route Challenge Lab font online does not match font on PDF.

Change title to read "Show IP Route Challenge Lab". Questions #10 & #11, last sentence "...parents it's child routes..." needs rewording. Can you rephrase this portion of each question to make sense for me? Thanks. The question text is: "Would any of the level 1 parent it's child routes be examined for a match?" The lab demonstrates how to troubleshoot a router configuration using the 1841 Cisco router. The error that needs to be removed regards leaving the clock rate off of a serial interface. With the 1841/2811, the interface will still work without a configured clock rate. Using no clock rate for an error on the actual routers will not work. In the companion Packet Tracer activity, this error will cause the interface to be shutdown. Need to correct the Lab but leave the Packet Tracer activity as it is.

Paragraph 10: Change: Later in this chapter, you will see that for a route to be a considered as a valid To: Later in this chapter, you will see that for a route to be a considered as a valid

Two fields in the EIGRP Packet Header graphic are wrong. See sreenshot-1. The words "Internal" and "Hop Count" are misspelled. See screenshot-1. Under the TLV: IP Internal button, the Type field value should be 0x0102. See screenshot-1 Under the TLV: IP External button, the Type field value should be 0x0103. See screenshot-2 Add blank line after "Click Update.." heading. Add line space after "Click Query and Reply..." heading. Paragraph 1 should be Null0, not Null 0 .

Add blank line after "Verifying the K Values".

Exploration 2 Packet Tracer launch graphic: Was: Activity 9.3.4.3 Examine and Modify the EIGRP metric Should be: Lab 9.3.4 Calculating the EIGRP metric Launch Graphic needs to be changed as stated above. Add line space before "Click Feasible Successor in the figure." heading. Under the third "Click" instruction... Click R2 Topology Table 2 in the figure. The topology table for R1 now shows R1 as the successor and there are no new feasible successors. Change the sentence to read... The topology table for R2 now shows R1 as the successor and there are no new feasible successors.

The title of the PT activity is "Investigating Successors and Feasible Successors", and that is different from the title on the content page, "Finite State Machine".

Change text in orange box in "R3 Summary Route" to "Configure the summary route on all interfaces that send EIGRP packets." For the graphic under the "Routing Tables 1" button, the second routing table is wrong. It's simply a repeat of the first routing table. The correct routing table text is in the attached E2_9_5_3_1_button2.ppt. Step 3: "R3#show interface serial0/0/1" command shows an incorrect Internet address in output. PC1, PC2, and PC3 have their Subnet Mask and Default Gateway column reversed.

Task 3, Step 1, Line 3 refers to PC5. There is no PC5 in the lab. Change media text to "EIGRP Troubleshooting Lab" Change media text to "Packet Tracer Skills Integration Challenge Activity" Routers are missing ID numbersl; cost numbers are overlapping images.

Remove bullet from bullet 4. mdi in list of terms needs to be cap change mdi to MDI The title for ELO 10.2.3 is a repeat of the 10.2.2 title. Change 10.2.3 ELO title to.... Comparison of a Link-State Routing Protocols A period is missing from option 3 of question 10, "When the administrator assigns an IP address and subnet mask to the interface".

Remove the second, identical picture of the topology on the first page of the Instructor document for this lab. (pasted from content) 255.255.255.255 - 255.255.255.252 Subtract the subnet mask --------------0. 0. 0. 15 Wildcard mask Wildcard mask should be 0.0.0.3 for a /30 subnet mask. The formula for calculating the mask is wrong: 255.255.255.255 - 255.255.255.252 Subtract the subnet mask --------------0. 0. 0. 15 Wildcard mask It should be.... 255.255.255.255 - 255.255.255.240 Subtract the subnet mask --------------0. 0. 0. 15 Wildcard mask Add blank line after "Click show ip..." header. The link between R1 and R2 has the wrong bandwidth label. It should be T1, not 64 kbps. The cost is 64 which is the cost of a T1 link. See screenshot-1.

The link between R1 and R2 has the wrong bandwidth label. It should be T1, not 64 kbps. The cost is 64 which is the cost of a T1 link. See screenshot-1. The second paragraph... The role of the DR and BDR will be discussed in more detail in a later section. For now, it is important to know that when the DR is elected, it remains the DR until one of the following conditions occurs: Needs to be changed to... When the DR is elected, it remains the DR until one of the following conditions occurs: Change the text of the fifth para after the 'Click New Router in the figure' instruction to the following: RouterD joins the network. If a new router enters the network after the DR and BDR have been elected, it will not become the DR or the BDR even if it has a higher OSPF interface priority or router ID than the current DR or BDR. The new router can be elected the BDR if the current DR or BDR fails. If the current DR fails, the BDR will become the DR, and the new router can be elected the new BDR. After the new router becomes the BDR, if the DR fails, then the new router will become the DR. The current DR and BDR must both fail before the new router can be elected DR or BDR. In the para 8 after the 'Click New DR Fails in the figure' instruction, delete the first sentence: Only after both the DR and the BDR fail will the DR and BDR routers change.

Every instance; Change: Router B To: RouterB

Correct typos/errors in the Instructor and Student Lab documents. In the Objectives, Multiaccess should be Multiaccess. In Scenario A, Task 2, should read "configure a privileged EXEC . . " instead of "configure an EXEC . . ." In Scenario B, Task 2, should read "configure a privileged EXEC . . " instead of "configure an EXEC . . ." Task 1, Step 2, Line 2 refers to network 172.16.0.0/16. There is no 172.16.0.0/16 network.

The lab demonstrates how to troubleshoot a router configuration using the 1841 Cisco router. The error that needs to be removed regards leaving the clock rate off of a serial interface. With the 1841/2811, the interface will still work without a configured clock rate. Using no clock rate for an error on the actual routers will not work. In the companion Packet Tracer activity, this error will cause the interface to be shutdown. Need to correct the Lab but leave the Packet Tracer activity as it is. Lab also lists OSPF with a different process ID on one router compared with other routers as being an error. This is NOT an error, the PID for OSPF does NOT have to be identical between routers. Remove this as an error in the lab.

The title is "Troubleshooting OSPF Configuration Lab" for both the content page and the PT activity.

The term "poison reverse" has no definition displayed.

In the glossary, link-state routing protocol is showing a period after it. The Link-State Packet (LSP) term has no definition displayed.

the definition for "flash" in glossary A variation of electrically erasable programmable read-only memory which is non erasable. Should the second "erasable" be "writable"? definition of "dynamic routing protocols" should not be the same as "dynamic routing".

Correction

Prod Date

End parenthesis removed.

December 2007

Glossary spelling changed.

December 2007

Remove blank line after "How Routers Work".

December 2007

New definition added to Glossary for media: Plural of December 2007 medium. The various physical environments through which transmission signals pass. Common network media include twisted-pair, coaxial and fiber-optic cable, and the atmosphere (through which microwave, laser, and infrared transmission occurs). Sometimes called physical media.

Change: "32.64 or 128 MB" To: "32, 64, or 128 MB"

December 2007

Typo corrected

December 2007

Edits completed.

December 2007

Bullet removed.

December 2007

Change: "or 7. Enter Setup Mode" To: "or Enter Setup Mode"

December 2007

Change: December 2007 This shows where the boostrap program is located and loaded the Cisco IOS, and the complete filename of the IOS image. To: This shows where the bootstrap program is located and loaded the Cisco IOS, and the complete filename of the IOS image. Remove blank line before "WAN Interfaces" heading.

December 2007

Change: R1(config)#line console 0 R1(config-line)#password cisco R1(config-line)#login R1(config)#line vty 0 4 R1(config-line)#password cisco R1(config-line)#login

December 2007

To: R1(config)#line console 0 R1(config-line)#password cisco R1(config-line)#login R1(config-line)#exit R1(config)#line vty 0 4 R1(config-line)#password cisco R1(config-line)#login R1(config-line)#exit

Change: "Comprehensive Routing Simulation"

December 2007

To: "Routing Table Principles" No change necessary as this is a duplicate of other tickets.

December 2007

Remove space from (TTL ).

December 2007

Title corrected.

December 2007

Change: "Discovering Packet and Frame Fields"

December 2007

To: "Determine Best Path using Routing Tables" Change: "Discovering Packet and Frame Fields"

December 2007

To: "Determine Best Path using Routing Tables" Title corrected.

December 2007

Change: "Determine Best Path using Routing Tables"

December 2007

To: "Equal Cost Load Balancing"

Change: "Determine Best Path using Routing Tables"

December 2007

To: "Equal Cost Load Balancing" Insert blank line between "address of the packet." and "In the first two results,".

December 2007

Add blank line between "One of three path determinations December 2007 results from this search:" and "Directly Connected Network".

Change: encapuslated in a PPP frame. To: encapsulated in a PPP frame.

December 2007

Animation; text in blue speech bubbles when they first arrive December 2007 at the router interface. Change: "Hmmm...a packet sent to my MAC address. Let me investigate further." To: "Hmmm...a frame sent to my MAC address. Let me investigate further." Animation; text in blue speech bubbles when they first arrive December 2007 at the router interface. Change: "Hmmm...a packet sent to my MAC address. Let me investigate further." To: "Hmmm...a frame sent to my MAC address. Let me investigate further." Animation; text in blue speech bubbles when they first arrive December 2007 at the router interface. Change: "Hmmm...a packet sent to my MAC address. Let me investigate further." To: "Hmmm...a packet sent to me via a broadcast. Let me investigate further." Animation; text in blue speech bubbles when they first arrive December 2007 at PC2. Change: "Oh look, a packet sent to my MAC address, let me process it. It also matches my IP address, so it MUST be mine." To: "Oh look, a frame sent to my MAC address, let me process it. The packet also matches my IP address, so it MUST be mine." Change the location of the PC2 speech bubble to appear over PC2, not R3.

December 2007

Change: December 2007 "We have just examined the encapsulation and decapulation process". To: "We have just examined the encapsulation and decapsulation process". Correct typo.

December 2007

Change labels as directed. Change text as suggested.

December 2007

Correct text positions as noted.

December 2007

Insert text as suggested.

December 2007

Change heading of second column to "Interface".

December 2007

Change to suggested text.

December 2007

Change: December 2007 "Use the Packet Tracer Activity to explore the features of the Cisco Discovery Protocol (CDP). Practice enabling and disabling CDP - globally and on a per-interface basis. Investigate the power of using CDP to discover the topology of a network." To: "Use the Packet Tracer Activity to practice configuring Serial interfaces. You will also use debug ip routing to observe the routing table processes." Replace: December 2007 "Use the Packet Tracer Activity to explore the features of the Cisco Discovery Protocol (CDP). Practice enabling and disabling CDP - globally and on a per-interface basis. Investigate the power of using CDP to discover the topology of a network." With: "Use the Packet Tracer Activity to practice configuring serial interfaces. In a lab environment, we use a serial crossover cable to directly connect two routers through their serial ports. The router connected to the DCE end of the cable will provide a clock signal. This activity will show how to configure IP information and a clock signal on router serial interfaces." Change made.

December 2007

Change: "Use the Packet Tracer Activity to practice configuring Ethernet interfaces. Follow the additional instructions provided in the activity to examine the ARP process in simulation mode."

December 2007

To: "Use the Packet Tracer Activity to explore the features of the Cisco Discovery Protocol (CDP). Practice enabling and disabling CDP - globally and on a per-interface basis. Investigate the power of using CDP to discover the topology of a network."

Replace: "Use the Packet Tracer Activity to practice configuring Ethernet interfaces. Follow the additional instructions provided in the activity to examine the ARP process in simulation mode."

December 2007

With: "Use the Packet Tracer Activity to explore the features of the Cisco Discovery Protocol (CDP). Practice enabling and disabling CDP - globally and on a per-interface basis. Investigate the power of using CDP to discover the topology of a network." Add blank line before "Disabling CDP" heading.

December 2007

Change "Again, referring to the figure, we would configure a static route on R1 to the LAN attached to R2." To: "Again, referring to the figure, we would configure a static route on R2 to the LAN attached to R1."

December 2007

Add space between Routing and Table in 2.4.3.1 and 2.4.3.2.

December 2007

Change: Gateway of last resort is not set To: Gateway of last resort is 0.0.0.0 to network 0.0.0.0

December 2007

Change: S0/0/0 To: S0/0/1

December 2007

Change lab title to "Troubleshooting Static Routes".

December 2007

Changes implemented.

December 2007

Add blank line after "HQ has the ...." and "ISP has the..." headings.

December 2007

Add blank line before "Further Reading.... " heading.

December 2007

Add "Update" to all evnelopes during animation.

December 2007

Change "varies" to "vary".

December 2007

Change comma to period in 5th bullet on page.

December 2007

Add and connect a serial cable from router 14 (cluster 3 then December 2007 0 then 1) back to cluster 1.

Adjust text or text boxes to contain "Rx Routing Table" in the December 2007 four text boxes. Also adjust text between the two bottom boxes so that the text is not under the control bar.

Add line space between "later chapters." and "In the figure, notice".

December 2007

Add blank line after "What is Convergence?". Add blank line between "convergence times." and "Convergence is both".

December 2007

5th paragraph: Administrative distance (AD) defines the preference of a routing source...Cisco routers use the AD feature to select the best path when it learns about the same destination network from two or more different routing sources.

December 2007

After clicking the AD link, the glossary shows "Administrative domain. Change the link to point to: administrative distance. Also Change administrative distance to AD and change AD to administrative domain.

The route 192.168.6.0 in the "show ip rip database" should be highlighted.

December 2007

Change implemented

December 2007

Change: Note the Administrative Distance for the static routes is 0. Example: S 192.168.2.0 [1/0] via 192.168.1.6. The 1 is the hop count and 0 is the AD.

December 2007

To: Note the Administrative Distance for the static routes is 1. Example: S 192.168.2.0 [1/0] via 192.168.1.6. The 1 is the AD and 0 is the hop count. Change the content page title in the course to match that of December 2007 the lab PDF. The content page title should be "Subnetting Scenario 1." Change the content page title in the course to match that of December 2007 the lab PDF. The content page title should be "Subnetting Scenario 2." Change: The link from HQ to Branch 3 will require an ip address for each end of the link.

December 2007

To: The link from Branch 1 to Branch 2 will require an ip address for each end of the link. Change "focuses" to "focus".

December 2007

Blank line added.

December 2007

Change: December 2007 All three router send their routing tables to their neighbors, which at this point only contains the directly connected networks. To: All three routers send their routing tables to their neighbors, which at this point only contains the directly connected networks. Italics removed.

December 2007

"Propagates" changed to "propagate".

December 2007

The correct response for the RIP_JITTER process should December 2007 be to subtract the value from the default 30 seconds for Cisco devices. This can be deduced from the fact that the times shown in the curriculum: Change: To prevent the synchronization of updates between routers, the Cisco IOS uses a random variable, called RIP_JITTER, which adds a variable amount of time to the update interval for each router in the network. To: To prevent the synchronization of updates between routers, the Cisco IOS uses a random variable, called RIP_JITTER, which subtracts a variable amount of time to the update interval for each router in the network.

Change "prevents" to "prevent".

December 2007

Blank line added.

December 2007

Change the name of the lab on the content page to match the lab PDF name "Routing Table Interpretation Lab".

December 2007

Add periods to the end of the answers for question 3 - first and third answers.

December 2007


December 2007

Remove periods from the ends of the answers to question 1. December 2007

Add a space between "-" and "Redistributing:" in the bottom December 2007 orange text box on tab 3. Remove period at the end of 3rd bullet in orange box at bottom.

For topology graphic, R3's S0/0/1 address Change: .1 To: .10

December 2007

For topology graphic, R3's S0/0/1 address Change: .1 To: .10

December 2007

Space added.

December 2007

After "Subnet 2: __________________", Add "Subnet 3: __________________" Change: "209.165.200.224/27" To: "209.165.200.224/30"

December 2007

Change: "209.165.200.224/27" To: "209.165.200.224/30"

December 2007

Change spelling to "interface".

December 2007

The typo has been corrected in the Instructor document which can be found in the Instructor Lab Manual.

December 2007


December 2007

Delete the periods from choices in questions: 1, 6, 7 and 9.

December 2007

Add "I" to the first word - also add period to definition.

December 2007

Remove italics from term.

December 2007

December 2007

Change implemented.

December 2007

Correct the graphic to include the CIDR notation of "172.16.0.0/14". Blank line added.

December 2007

Change: "Step 2: Count the number of left-most matching bits to determine the mask .14 matching bits, /14 or 255.252.0.0". To: "Step 2: Count the number of left-most matching bits to determine the mask. 14 matching bits, /14 or 255.252.0.0".

December 2007


December 2007

Remove "30" from this question.

December 2007

Change "VSLM" to "VLSM" in answer of question 7.

December 2007

Remove "is" between ip address and "network".

December 2007

Question clarified.

December 2007

Remove extra line between last and second to last paragraphs.

December 2007

December 2007

Blank line added.

December 2007

Add blank lines between last four headings and subsequent December 2007 text


December 2007

Change: "Routing Table Corruption"

December 2007

To: "Which Router Has the Correct Default Route" Changes implemented.

December 2007

Media fixed.

December 2007

Add blank line before step 6 and before step 7.

December 2007


December 2007

Media fixed.

December 2007

Change: "172.176.2.1" to: '172.16.2.1"

December 2007


December 2007

Change: "RIPv2 Troubleshooting"

December 2007

To: "RIP Troubleshooting" Media fixed.

December 2007

Periods removed.

December 2007

Blank line added.

December 2007

Blank line added.

December 2007

Change "now" to "not".

December 2007

Blank line added.

December 2007

Blank line added.

December 2007

Correct the graphic with the following changes. In the top of December 2007 the graphic show after you click the "Drop Packet" button remove the red line. In the second table there needs to be red lines drawn through all four of the IP addresses. From "Level 1 Parent Route" "172.16.0.0/16" all the way to "00000000" has to have a red line through it. From "Level 2 Child Route" "172.16.1.0/24" all the way to "00000000" has to have a red line through it. From "Level 2 Child Route" "172.16.2.0/24" all the way to "00000000" has to have a red line through it. From "Level 3 Child Route" "172.16.1.0/24" all the way to "00000000" has to have a red line through it. Change the text at the bottom right of the graphic to "First 24 bits need to match".

Blank lines added.

December 2007

Blank line added.

December 2007

Need more information to determine what needs to be fixed. December 2007

Title corrected.

December 2007

Question clarified.

December 2007


December 2007

Remove the extra a between "be" and "considered".

December 2007

Fields corrected.

December 2007

Spelling corrected

December 2007


December 2007

Blank lines added.

December 2007

Change: December 2007 "Notice that EIGRP has automatically included a summary route to Null 0 for the classful networks 192.168.10.0/24 and 172.16.0.0/16." To: "Notice that EIGRP has automatically included a summary route to Null0 for the classful networks 192.168.10.0/24 and 172.16.0.0/16." Blank line added.

December 2007

Correct activity title.

December 2007

Blank line added.

December 2007

Make change as suggested.

December 2007

Change: "Investigating Successors and Feasible Successors"

December 2007

To: "Finite State Machine" Text changed as directed.

December 2007

Implement correct routing table.

December 2007

Change: "Internet address is 192.168.10.9/30" to: "Internet address is 192.168.10.10/30"

December 2007

For PC1: Move 172.18.129.1 to the "Default Gateway" column and move 255.255.255.240 to the "Subnet Mask" column.

December 2007

For PC2: Move 172.18.64.1 to the "Default Gateway" column and move 255.255.192.0 to the "Subnet Mask" column. For PC3: Move 172.18.128.1 to the "Default Gateway" column and move 255.255.255.0 to the "Subnet Mask" column.

Remove the line: "From the host PC1, is it possible to ping PC5? ______" Text changed as directed.

December 2007

Text changed as directed.

December 2007

December 2007

Adjust numbers for routers and costs for each "R1" - "R5" December 2007 button according to media on AC so that they are located in the correct place and do not overlap. Bullet removed.

December 2007

Change mdi to MDI.

December 2007

Title corrected.

December 2007

Change: "When the administrator assigns an IP address and subnet mask to the interface" to: "When the administrator assigns an IP address and subnet mask to the interface."

December 2007


December 2007

Change wildcard mask to 0.0.0.3.

December 2007

Subnet mask changed to 255.255.255.240.

December 2007

Blank line added.

December 2007

Change label from 64 to T1.

December 2007

Change label from 64 to T1.

December 2007

Change made.

December 2007

Text changed as directed.

December 2007

Change "Router B" to "RouterB" in second to last and last paragraphs.

December 2007


December 2007

Change: "How many total IP addresses are required from the 172.16.0.0/16 network? __________" to: "How many total IP addresses are required from the 172.20.0.0/16 network? __________"

December 2007


December 2007

Change: "Troubleshooting OSPF Configuration Lab"

December 2007

To: "OSPF Troubleshooting Lab" Add a definition for the term. "Routing updates that explicitly December 2007 indicate that a network or a subnet is unreachable, rather than implying that a network is unreachable by not including it in updates. Poison reverse updates are sent to defeat large routing loops." Remove period after the term.

December 2007

Add a definition for the term. "Broadcast packet used by link- December 2007 state protocols that contains information about neighbors and path costs." Please use the following definition:

December 2007

"Technology developed by Intel and licensed to other semiconductor companies. Flash memory is nonvolatile storage that can be electrically erased and reprogrammed. Allows software images to be stored, booted, and rewritten as necessary." Change: Routing that adjusts automatically to network topology or trafic changes. Also called adaptive routing. To: Allow network devices to learn routes dynamically. RIP and EIGRP are examples of dynamic routing protocols.

December 2007

ERouting Curriculum Errata

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