How to Reset
First pull in a serial cable pull the compact flash card from slot 0 (you may also need to remove slot 1)
Turn on the router
you will see the following until the router shows rommon>
Readonly ROMMON initialized
Compact Flash0: Not present
All that’s then required to is type the following command rommon1> confreg 0x2142 the next you need to insert the Compact flash card and restart using the command rommon2> reset this will boot the router up without a running config.
you will now get a option to run the setup wizard of a sort but we do not need to at this time.
--- System Configuration Dialog ---
Would you like to enter the initial configuration dialog? [yes/no]: no
the final steps to reset are router> enable and then router# wr this will overwrite the stored configuration just reboot to check next you will in to configure router# configure terminal then issue the next command Router (config)# config-register 0x2102 now type router (config)# end with one more final router# wr this will finally write the config to the compact flash and your done give it a reboot and see if all your hardwork has paid off!
rommon1> confreg 0x2142rommon2> reset
router> enablerouter# wrrouter# configure terminalRouter (config)# config-register 0x2102router (config)# endrouter# wr