Friday, February 15, 2013

Cisco Router ROMMON Upgrade

Besides keeping your IOS code up to date, you may want to also update your router's ROMMON version. The first thing to do is download the ROMMON image from Cisco for you specific router. Once downloaded, you'll need to place it in your TFTP server folder so that it can be downloaded by your router. Next, go to your router and type in the following command:

 Router#upgrade rom-monitor file tftp://192.168.30.10/C2800NM_RM2.srec.124-13r.T11

You should change C2800NM_RM2.srec.124-13r.T11 to the actual file name that you downloaded from Cisco. Execute the command, the router will download the image and prompt you to allow it to reboot.

 Router#upgrade rom-monitor file tftp://192.168.30.10/C2800NM_RM2.srec.124-13r.T11
 Loading C2800NM_RM2.srec.124-13r.T11 from 192.168.30.10 (via GigabitEthernet0/0): !!!!!!!
 [OK - 1626367 bytes]

 This command will result in a  'power-on reset' of the router!
 Continue? [yes/no]: yes

 System configuration has been modified. Save? [yes/no]: no
 ROMMON image upgrade in progress.
 Erasing boot flash  eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
 Programming boot flash ppppppppppp
            
 Now Reloading

Select Yes and the router will erase the current boot flash and program the new image and reload.

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