Cargar IOS Router Cisco en Modo Rommon

Cargar IOS Router Cisco en modo Rommon rommon 1 > IP_ADDRESS=192.168.111.1 IP_ADDRESS=192.168.111.1 rommon 2 > TFTP_FILE=c2600-js-mz.122-2 TFTP_FILE=c2600-js-mz.122-29.bin 9.bin rommon 3 > DEFAULT_GATEWA DEFAULT_GATEWAY=192.168.111.2 Y=192.168.111.254 54 rommon 4 > IP_SUBNET_MASK=255.255.255 IP_SUBNET_MASK=255.255.255.0 .0 rommon 5 > TFTP_SERVER=192.168.111.254 TFTP_SERVER=192.168.111.254 rommon 6 > tftpdnld IP_ADDRESS: 192.168.111.1 192.168.111.1 --> Esta es la IP de tu t u Router (sin IOS) IP_SUBNET_MASK: IP_SUBNET_MASK: 255.255.255.0 --> Mascara Mascar a de Subred DEFAULT_GATEWAY: DEFAULT_GATEWAY: 192.168.111.254 --> Puerta de Enlace o Bien Router Server  TFTP_SERVER: 192.168.111.254 192.168.111.254 --> Server router (al que dejaste como server) s erver) TFTP_FILE: c2600-js-mz.122-29.bin --> Nombre de la IOS (no te equivoques en escribirla)  Nota: debes escribir los comandos asi.. IP_ADDRESS=10.0.0.1 IP_ADDRESS=10.0.0.1 (con signo = ) Invoke this command for disaster recovery only.WARNING: all existing data in all partitions on flash will be lost!Do you wish to continue? y/n: [n]: y Receiving c2600-js-mz.122-29.bin from 192.168.111.254 192.168.111.254 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!File reception completed.Copying file c2600-js-mz.122-29.bin to flash.Erasing flash at 0x61fc0000program flash location 0x60b80000rommon 7 > confreg 0x2102 --> Aqui haces el cambio de configuracion inicial... 0x2102 --> indica que partira de la ultima configuracion que se guardo. 0x2142 --> indica que se saltara la configuracion que estuvo guardada en la nvram t partira sin configuracion. Sirve mucha para quebrar password. Para dejar el router como servidor tftp tft p te metes a Conf T y escribes tftp-server flash:"IOS"--> nombre de la imagen ima gen presiona el tab y te lo completa.

rommon 11 > IP_ADDRESS=192.168.1.5 rommon 12 > IP_SUBNET_MASK=255.255.255.0 rommon 13 > DEFAULT_GATEWAY=192.168.1.1 rommon 14 > TFTP_SERVER=192.168.1.10 rommon 15 > TFTP_FILE=c1841-advipservicesk9-mz.124-13a.bin rommon 16 > tftpdnld . IP_ADDRESS: 192.168.1.5 IP_SUBNET_MASK: 255.255.255.0 DEFAULT_GATEWAY: 192.168.1.1 TFTP_SERVER: 192.168.1.10 TFTP_FILE: c1841-advipservicesk9-mz.124-13a.bin TFTP_MACADDR: 00:13:80:7b:20:1e TFTP_VERBOSE: Progress TFTP_RETRY_COUNT: 18 TFTP_TIMEOUT: 7200 TFTP_CHECKSUM: Yes FE_PORT: 0 FE_SPEED_MODE: Auto Detect . Invoke this command for disaster recovery only. WARNING: all existing data in all partitions on flash will be lost! Do you wish to continue? y/n: [n]: y ... Receiving c1841-advipservicesk9-mz.124-13a.bin from 192.168.1.10 !!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!! .... File reception completed. Validating checksum. Copying file c1841-advipservicesk9-mz.124-13a.bin to flash. program load complete, entry point: 0x8000f000, size: 0xc100 . Initializing ATA monitor library....... . Format: Drive communication & 1st Sector Write OK... Writing Monlib sectors. ........................................................................... ..... .................. Monlib write complete Format: All system sectors written. OK... Format: Operation completed successfully. Format of flash: complete program load complete, entry point: 0x8000f000, size: 0xc100 Initializing ATA monitor library....... rommon 17 >

The tftpdnld ROMmon command recovery procedure fails due to invalid syntax or variables VERSIÓN 1

Core Issue The tftpdnld ROM Monitor (ROMmon) recovery procedure must be done in a specific way in order to work properly. Inputting the commands with incorrect syntax or variables causes the procedure to fail.

Resolution If the tftpdnld ROMmon command recovery procedure fails, verify that the following c onditions are met:    

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The TFTP server is running. The Cisco IOS file is in the root directory of the TFTP server. The filesize of the Cisco IOS image being uploaded is correct. If using Cisco TFTP Server 1.1, deselect the two check boxes in View > Options for logging and file transfer progress. If possible, connect directly to the PC running the TFTP server with a crossover cable. The file being uploaded is compatible with hardware and memory requirements. If the router has two built-in Ethernet or fast Ethernet interfaces, always use the first interface (usually 0/0). You must use the built-in interface. For example, if a Cisco 1700 series router has a WIC-1ENET card installed, the tftpdnld ROMmon command does not work with that card. All variable commands must be upper case. The variable itself is case sensitive as in the case of a filename, as shown in the following example:

rommon11>TFTP_FILE=c2600-i-mz.120-7.T.bin  

TFTP_FILE= must be upper case and c2600-i-mz.120-7.T.bin is case sensitive. The DEFAULT_GATEWAY= address should not be the same address as the IP_ADDRESS= variable. This causes the process to fail. Set the DEFAULT_GATEWAY= variable to the

address of the TFTP server. The following example shows how to perform a tftpdnld ROMmon command recovery  procedure with a TFTP server at the 10.1.1.2 address, a 255.255.255.0 subnet mask, and a filename of c2600-is-mz.120-7.T.bin.: rommon 16 > IP_ADDRESS=10.1.1.1 !--- This is the temporary IP address assigned to the router. rommon 17 > IP_SUBNET_MASK=255.255.255.0 !--- Same as on the TFTP server. rommon 18 > DEFAULT_GATEWAY=10.1.1.2 !--- Use the IP address of the TFTP server. rommon 19 > TFTP_SERVER=10.1.1.2 !--- TFTP server's IP address. rommon 20 > TFTP_FILE=c2600-is-mz.120-7.T.bin

!--- Exact name is case sensitive. rommon 21 > TFTP_CHECKSUM=0 !--- This prevents checksum errors with earlier 2600 boot ROMs. rommon 22 > tftpdnld !--- This command must be lower case. IP_ADDRESS: 10.1.1.1 IP_SUBNET_MASK: 255.255.255.0 DEFAULT_GATEWAY: 10.1.1.2 TFTP_SERVER: 10.1.1.2 TFTP_FILE: c2600-is-mz.120-7.T.bin Invoke this command for disaster recovery only. WARNING: all existing data in all partitions on flash will be lost! Do you wish to continue? y/n: [n]: y Receiving c2600-is-mz.120-7.T.bin from 10.1.1.2 !!!!!.!!!!!!!!!!!!!!!!!!!.!! File reception completed. Copying file c2600-is-mz.120-7.T to flash. Erasing flash at 0x607c0000 program flash location 0x60440000 rommon 22 >reset