How to Break or recover the Cisco router password

Please follow the instruction to recover router password.

• Turn the power switch off and back on to recycle the power. 

• Press the Break key or key sequence to put the router into ROM Monitor mode. The break key varies by computer or terminal software. The sequence might be CTRL-D, CTRL-Break or another combination. 

• At the  > prompt, type 0 to record the current value of the configuration register normally 0×2102, or 0×102.

>o

Configuration register = 0×2102 at last boot

Bit#    Configuration register option settings:

15      Diagnostic mode disabled. 

• Type o/r 0×2142 to tell the router to boot from flash without loading the configuration in NVRAM at the next reload. 

• Type i to have the router reboot. The router ignores the configuration in NVRAM.

• The router runs the setup dialog, Type no or press Ctrl-C to skip the initial setup Dialog. 

• Type enable ate the Router> prompt to go to privileged exec mode.

• Copy the startup configuration to the running configuration by using the configure memory or copy startup-config running-config commands. Do not type configure terminal. If you use the configure terminal command, you overwrite the configuration stored in NVRAM.

• View the configuration by typing write terminal or show running-config. View the configured line, vty and enable passwords. Any encrypted passwords need to be changed. 

• Enter the configuration mode by typing configure terminal. Change the line of enable passwords as necessary. 

• All interfaces are in a shutdown state. Issue the no shutdown command on every interface that is to be used.

• Type config-register 0×2102 to return the router to normal operation at the next reloads.

• Exit configuration mode by pressing Ctrl-Z

• Save your changes by typing write memory or copy running-config startup-config.

• Reload the router and verify the passwords.

cisco, password, recover, router

Cisco