First piece of advice: "It doesn't matter if your hardware is either old or new, always do a reset to default factory settings."
It is amazing how often people forget about that and start setting up on top of someone's else config. Not really a big deal for routers, switches, etc; But imagine if we were talking about a pre-install computer, bought used, and that computer have a keystroke capture software??? Thats my point.
In my case, m router came with a password, that I didn't have, and I end up having to first reset the password and then resetting the router. I promise talk about resetting password next post.
This are the steps to reset a cisco router to factory default settings:
In order to perform the procedures described in this document, you must have "enable" (also known as "privileged EXEC") access on the router. At the prompt (HOSTNAME>) type: enable. This should change the prompt to (HOSTNAME#). This is the privileged EXEC mode.
This method uses the config-register 0x2102 command in global configuration mode.
- Check the configuration register on the router by issuing the show version command.
The configuration register setting is displayed in the last line of the show version command output and should be set to 0x2102. If this is not the case, enter the config-register 0x2102 command once in global configuration mode.
router#configure terminal router(config)#config-register 0x2102 router(config)#end router#
- Erase the current start-up configuration on the router with the write erase command.
- Reload the router with the reload command. When prompted to save the configuration, DO NOT save.
router#reload System configuration has been modified. Save? [yes/no]: n Proceed with reload? [confirm]
--- System Configuration Dialog --- Would you like to enter the initial configuration dialog? [yes/no]:
Thats all for now.