Chapter 3
Troubleshooting
Recovering a Lost Password
3-4
Cisco 1751 Router Hardware Installation Guide
78-11258-04
Resetting the Router
Follow these steps to reset the router:
Step 1
Do one of the following:
•
If break is enabled, go to
Step 2
.
•
If break is disabled, turn the router off, 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, refer to the documentation that came with the
terminal for instructions on how to send a break. To send a break in
Windows HyperTerminal, enter Ctrl-Break.
Step 2
Send a 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 resets, and the configuration register is set to 0x142. The router boots
the system image in Flash memory and displays the following:
--- 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 privileged EXEC mode. Configuration
changes can be made only in this mode.
Router>
enable