Chapter 14 Troubleshooting

Recovering a Lost Password

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Reset the Router

To reset the router, follow these steps:

Step 1 If break is enabled, go to Step 2. If break is disabled, turn the router off (O), wait 5 seconds, and turn it on () again. Within 60 seconds, press the Break key. The terminal displays the ROM monitor prompt. Go to Step 3.

Note Some terminal keyboards have a key labeled Break. If your keyboard does not have a Break key, see the documentation that came with the terminal for instructions on how to send a break.

Step 2 Press break. The terminal displays the following prompt: rommon 2>

Step 3 Enter confreg 0x142 to reset the configuration register: rommon 2> confreg 0x142

Step 4 Initialize the router by entering the reset command: rommon 2> reset

The router cycles its power, and the configuration register is set to 0x142. The router uses the boot ROM system image, indicated by the system configuration dialog:

--- System Configuration Dialog ---

Step 5 Enter no in response to the prompts until the following message is displayed:

Press RETURN to get started!

Step 6 Press Return. The following prompt appears:

Router>

Step 7 Enter the enable command to enter enable mode. Configuration changes can be made only in enable mode:

Router> enable

The prompt changes to the privileged EXEC prompt:

Router#

Step 8 Enter the show startup-configcommand to display an enable password in the configuration file:

Router# show startup-config

If you are recovering an enable password, omit the following “Reset the Password and Save Your Changes” section, and complete the password recovery process by performing the steps in the “Reset the Configuration Register Value” section.

If you are recovering an enable secret password, it is not displayed in the show startup-configcommand output. Complete the password recovery process by performing the steps in the following “Reset the Password and Save Your Changes” section.

 

 

Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide

 

 

 

 

 

 

OL-6426-02

 

 

14-11

 

 

 

 

 

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Cisco Systems OL-6426-02 Reset the Router, Press Return. The following prompt appears, 14-11, Router# show startup-config