Cisco 1721 User Manual download pdf (Page 52)

Chapter 3 Troubleshooting

Recovering a Lost Password

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Cisco 1721 Router Hardware Installation Guide

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Recovering a Lost Password

This section describes how to recover a lost enable password and how to enter a

new enable secret password.

Password recovery consists of the following major processes:

• Determining the Configuration Register Value

With this process, you determine the configuration of the router, so that you

may restore the configuration after the password is recovered.

• Resetting the Router

With this process, you reconfigure the router to its intial startup

configuration. You then display the enable password, if one is used.

• Resetting the Password

If you are using an enable secret password, you enter a new password with

this process. You then restore the router to its prior configuration.

• Resetting the Configuration Register Value

If you are using an enable password, you use this process to restore the router

to its prior configuration.

Note See the “Hot Tips” section on Cisco.com for additional information on

replacing enable secret passwords.

Determining the Configuration Register Value

Follow these steps to determine the configuration register value:

Step 1 Connect an ASCII terminal or a PC running a terminal-emulation program to the

console port on the router. See the “Connecting a PC” section in Chapter 2,

“Installation.”

Step 2 Configure the terminal to operate at 9600 baud, 8 data bits, no parity, 1 stop bit

and no flow control.

Step 3 Reboot the router by pressing the power switch to the off ( 0 ) position and then

to the on ( | ) position.

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Cisco 1721 User Manual Page 52