Cisco password recovery

Cisco 1841

This is compressed process of Password Recovery Procedure for the Cisco 1700 and 1800 Series Routers for Cisco 1841 router.

1. Console to the router with Tetra Term and send Break (alt+b) at POST. Literally power off/on and send break straight after 2 seconds or when you see the first lines of booting messages.

   rommon 1 > confreg 0x2142 
   You must reset or power cycle for new config to take effect 
   rommon 2 > reset

2. Answer No or press ctrl+c to skip auto configuration
3. Type enable>
4. Type configure memory or copy startup-config running-config in order to copy the nonvolatile RAM (NVRAM) into memory.
5. Type configure terminal
6. Type enable secret <password> in order to change the enable secret password
7. Issue the no shutdown command on every interface that you use.
8. Type config-register <configuration_register_setting>. Where configuration_register_setting is either the value you recorded or 0x2102

   hostname(config)#config-register 0x2102

9. Type end and write memory or copy running-config startup-config to save changes
10. Type reload