Cisco CISCO876-SEC-I-K9 Configuration Guide - Page 151

Reset the Router, config-register 0x01, Break, confreg 0x2142, reset, Return, enable

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Chapter 14 Troubleshooting Recovering a Lost Password Step 5 Step 6 Using the power switch, turn off the router and then turn it back on. Enter the config-register 0x01 command from privileged EXEC mode To enable the break setting (indicated by the value of bit 8 in the configuration register). • Break enabled-Bit 8 is set to 0. • Break disabled (default setting)-Bit 8 is set to 1. 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 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Press break. The terminal displays the following prompt: rommon 2> Enter confreg 0x2142 to reset the configuration register: rommon 2> confreg 0x2142 Initialize the router by entering the reset command: rommon 2> reset The router cycles its power, and the configuration register is set to 0x2142. The router uses the boot ROM system image, indicated by the system configuration dialog: --- System Configuration Dialog --- Enter no in response to the prompts until the following message is displayed: Press RETURN to get started! Press Return. The following prompt appears: Router> 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# Enter the show startup-config command to display an enable password in the configuration file: Router# show startup-config OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 14-11

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14-11
Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide
OL-5332-01
Chapter 14
Troubleshooting
Recovering a Lost Password
Step 5
Using the power switch, turn off the router and then turn it back on.
Step 6
Enter the
config-register 0x01
command from privileged EXEC mode To enable the break setting
(indicated by the value of bit 8 in the configuration register).
•
Break enabled—Bit 8 is set to 0.
•
Break disabled (default setting)—Bit 8 is set to 1.
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 0x2142
to reset the configuration register:
rommon 2>
confreg 0x2142
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 0x2142. 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-config
command to display an enable password in the configuration file:
Router#
show startup-config