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Use a TFTP Server to Backup and Restore a Configuration
This is a step-by-step approach to copy a configuration from a router to a TFTP server, and back to another router. Before you proceed with this method, make sure you have a TFTP server on the network to which you have IP connectivity.

At the Router prompt, issue the enable command, and provide the required password when prompted.

The prompt changes to Router#, which indicates that the router is now in privileged mode.

Copy the running configuration file to the TFTP server:

CE_2#copy running-config tftp:
Address or name of remote host []?
Destination filename [ce_2-confg]? backup_cfg_for_my_router
1030 bytes copied in 2.489 secs (395 bytes/sec)
Open the configuration file with a text editor. Search for and remove any line that starts with “AAA”.

Note: This step is to remove any security commands that can lock you out of the router.

Copy the configuration file from the TFTP server to a new router in privileged (enable) mode which has a basic configuration.

Router#copy tftp: running-config
Address or name of remote host []?
Source filename []? backup_cfg_for_my_router
Destination filename [running-config]?
Accessing tftp://…
Loading backup_cfg_for_router from (via FastEthernet0/0): !
[OK – 1030 bytes]

1030 bytes copied in 9.612 secs (107 bytes/sec)

  • David Bombal