Chapter 4 System Startup and Basic System Configuration

Recovering a Lost Password

Recovering a Lost Password

Use the following procedure to recover a lost password.

Note This procedure does not work for password recovery if the enable password is encrypted—you must reconfigure the system before attempting a reboot (see the “Configuring the Router” section on page 4-14).

Step 1 Enter the show version command at the privileged EXEC mode prompt to display the existing software configuration register value.

Milo# show version

.

.

.

Configuration register is 0x141

Write this value on paper for use in Step 10.

Step 2 Enter the reload command to boot the system and press the Break key within 5 seconds to display the ROM monitor prompt.

Milo# reload

rommon 1>

If the Break function is disabled, power off the power supplies, wait for at least 5 seconds, and then restore power. Press the Break key within 5 seconds of powering on the router.

Step 3 Enter the config-registercommand and answer yes to change the configuration settings and then to ignore the system configuration information.

rommon 1> config-register

Configuration Summary enabled are: console baud: 9600

boot: image specified by the boot system command

or default to: cisco2-prp

do you wish to change the configuration? y/n [n]: y enable “diagnostic mode”? y/n [n]:

 

 

Cisco 12010, Cisco 12410, and Cisco 12810 Router Installation and Configuration Guide

 

 

 

 

 

 

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Cisco Systems 12410, 12010, 12810 manual Recovering a Lost Password, Rommon 1 config-register