Cisco 520 Series, Software Configuration Manual

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Cisco Secure Router 520 Series Software Configuration Guide
OL-14210-01
Chapter 12 Troubleshooting
Recovering a Lost Password
Cisco SR520W-ADSL (MPC8272) processor (revision 0x100) with 118784K/12288K bytes of
memory.
Processor board ID FOC09171CB7
MPC8272 CPU Rev: Part Number 0xC, Mask Number 0x10
4 FastEthernet interfaces
1 ATM interface
1 802.11 Radio
128K bytes of non-volatile configuration memory.
20480K bytes of processor board System flash (Intel Strataflash)
Configuration register is 0x0
Step 4
Record the setting of the configuration register.
Step 5 To enable the break setting (indicated by the value of bit 8 in the configuration register), enter the
config-register 0x01 command from privileged EXEC mode.
•
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>