Cisco PRP-2 Installation And Configuration Manual page 77

Recovering the Root Password on Single-RP Routers
Use the following procedure to recover the router password from a router with a single RP.
Step 1 Place the router in ROM Monitor mode.
Set the RP configuration register to 0x42 at the ROMMON prompt:
Step 2
rommon 1 > confreg 0x42
Note The configuration register is not an environment variable like TURBOBOOT (which is described earlier
in this chapter). Do not enter an equal sign when entering the confreg command.
Reset or power cycle the router so that the new setting can take effect:
Step 3
rommon 2 > reset
Press Return at the prompt to enter the password recovery dialog. Then enter the new root-system
Step 4
username and password and save the configuration.
router con0/0/CPU0 is now available
Press RETURN to get started.
--- Administrative User Dialog ---
Enter root-system username: user
Enter secret:
Enter secret again:
RP/0/0/CPU0:Jan 10 12:50:53.105 : exec[65652]: %MGBL-CONFIG-6-DB_COMMIT :
'Administration configuration committed by system'. Use 'show configuration commit changes
2000000009' to view the changes.
Use the 'admin' mode 'configure' command to modify this configuration.
User Access Verification
Username: user
Password:
RP/0/0/CPU0:router#
Recovering the Root Password on Redundant-RP Routers
Use the following procedure to recover the router password from a router with redundant RPs.
Place both RPs in ROM Monitor mode.
Step 1
Set the configuration register of the standby RP to 0x0 so that the standby RP does not take control
Step 2
during the password recovery:
rommon 1> confreg 0x0
The configuration register is not an environment variable like TURBOBOOT (which is described earlier
Note
in this chapter). Do not enter an equal sign when entering the confreg command.
OL-17436-01
Additional Configuration and Maintenance Tasks
77