Password Recover in CISCO Router

This is a small lab guide ” how to recover a forgot on password in CISCO device “(Router/Switch)

Since i conduct the lab session on cisco packet tracer but same scenario can apply on the actual device too.


Router is looking for the enable password ,let’s reboot router and log in to roman mode by pressing CTRL+C

per requirements to recover password is

  • physical access to device console port


Now we are in roman mode let’s look into possible command that can perform in the roman mode by using “?” command


Next step is to set configuration register value using “confreg” command.

Configuration register settings are listed in cisco official site  and can be refer for mo details.


rommon 2 > confreg 0x2142


then , “boot” command need be assign


NO PASSWORD REQUESTED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

then to use router again u have to change register configuration to default value and copying start up configuration to running configuration can use to recover old configuration.

warning: if you forgot to change password on router after copying startup config. router will prompt and ask old password.There for change password and saving configuration is must after recovery.


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