Cisco Systems UBR10012 manual Password Recovery Procedure Overview

C H A P T E R 5

Replacing or Recovering Passwords

This section describes how to recover a lost enable or console login password, and how to replace a lost enable secret password on the Cisco uBR10012 router.

Note It is possible to recover the enable or console login password. The enable secret password is encrypted, however, and must be replaced with a new enable secret password.

Password Recovery Procedure Overview

The following is an overview of the steps in the password recovery procedure.

•If you can log in to the router, enter the show version command to determine the existing configuration register value.

•Press the Break key to go to the bootstrap program prompt (ROM monitor). You might need to reload the system image by power-cycling the router.

•Change the configuration register to 0x2142 so that the router ignores the startup configuration file during bootup. This allows you to log in without using a password and to display the startup configuration password.

•Power cycle the router by typing reload at the rommon> prompt.

•Log in to the router and enter the privileged EXEC mode.

•Enter the show startup-configcommand to display the passwords.

•Recover or replace the displayed passwords.

•Change the configuration register back to its original setting.

Note To recover a lost password if the break function is disabled on the router, you must have physical access to the router.

Password Recovery Procedure

To recover or replace a lost enable, enable secret, or console login password, use this procedure:

Step 1 Attach an ASCII terminal to the console port on the router.

Cisco uBR10012 Universal Broadband Router Troubleshooting Guide

OL-1237-01 5-1