Cisco 2600/2800/3800 Series Router Image Recovery

This document explains how to download a software image to a Cisco 2600/2800/3800 Series Router using Trivial File Transfer Protocol (TFTP) over the network using the tftpdnld command.

If you dont have any image on router then it will automatically stops at rommon mode

over there Use

rommon > set

To display current rommon settings

Then use following commands to set network and file attributes

rommon  > IP_ADDRESS=192.168.0.2
rommon 1 > IP_SUBNET_MASK=255.255.255.0
rommon 2 > DEFAULT_GATEWAY=192.168.0.1
rommon 3 > TFTP_SERVER=192.168.0.1
rommon 4 > TFTP_FILE=c2600-i-mz.122-5d.bin
rommon 5 > tftpdnld

In above example 192.168.0.1 is your pc/laptop connected to router on network and having any tftp server software running

In case you dont have any tftp-server installed Please download Solarwinds Tftp which is very easy to use,

Then in tftp folder of your tftp server you must have c2600-i-mz.122-5d.bin file copied

You can only download files to the router. You cannot use ROMmon TFTP to get files from the router

Then router will show


IP_ADDRESS: 192.168.0.1

IP_SUBNET_MASK: 255.255.255.0
DEFAULT_GATEWAY: 192.168.0.1

TFTP_SERVER: 192.168.0.1
TFTP_FILE: c2600-i-mz.122-5d.bin

And ask for

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