Cisco Systems 2600 manual DEFAULTGATEWAY=172.16.19.1

Appendix B Using the ROM Monitor

Recovering Cisco IOS Software Images

Note Specify the TR_SPEED_MODE variable only for routers with a Token Ring network interface; or for routers with both an Ethernet and a Token Ring port, those routers that are set to use the Token Ring port with the tftpdnld command.

•TR_1E1R_PORT—Sets the port to be used with the tftpdnld command. 0=Use Ethernet port; 1=Use Token Ring port. The default is 0.

Note Specify the TR_1E1R_PORT variable only for those routers with both an Ethernet and a Token Ring port.

Step 2 Enter the tftpdnld [-h] [-r] command:

Options include the following:

•h—Displays the tftpdnld command help screen.

•r—Loads the Cisco IOS software image only to DRAM and launches the image without writing the image into flash memory.

rommon 6> tftpdnld

IP_ADDRESS=172.15.19.11

IP_SUBNET_MASK=255.255.255.0

DEFAULT_GATEWAY=172.16.19.1

TFTP_SERVER=172.15.20.10

TFTP_FILE=/tftpboot/2600-i-mz

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]:

Step 3 Enter y to download the Cisco IOS software image. When the process is complete, the ROM monitor mode prompt appears on your screen.

rommon 7>

The router is now ready to boot from the Cisco IOS image. Enter the boot ROM monitor command to reboot the router.

Cisco 2600 Series Routers Hardware Installation Guide