Filter
Top Products
7000 Series Route Switch Processor (RSP7000) Installation and Configuration in the Cisco 7000 Series Routers 39
Reference Information
Recovering a Lost Password
An overview of recovering a lost password follows:
• Enter the show version command to note the existing software configuration register value.
• Break to the bootstrap program prompt.
• Change the configuration register to ignore NVRAM.
Note A key to recovering a lost password is to set the configuration register so that the contents of
NVRAM are ignored (0x0040), allowing you to see your password.
• Enter privileged level in the system EXEC.
• Enter the show startup-configuration command to display the enable password.
• Change the configuration register value back to its original setting.
To recover a lost password, follow these procedures.
Step 1 Attach an ASCII terminal to the router console port, which is located on the rear panel.
Step 2 Configure the terminal to operate at 9600 baud, 8 data bits, no parity, 2 stop bits (or to
whatever settings the router is set).
Step 3 Enter the show version command to display the existing configuration register value. Note
this value for later use in Step 14.
Step 4 If Break is disabled, power cycle the router. (To power cycle, turn off the router, wait five
seconds, and then turn it on again.) If Break is enabled on the router, press the Break key
or send a break (^[) and then proceed to Step 5.
Step 5 Within 60 seconds of turning on the router, press the Break key. This action causes the
terminal to display the bootstrap program prompt:
rommon 1 >
Step 6 Set the configuration register to ignore the configuration file information as follows:
rommon 1 > confreg
Configuration Summary
enabled are:
console baud: 9600
boot: image specified by the boot system command
or default to: cisco2-RSP
do you wish to change the configuration? y/n [n]: y
enable “diagnostic mode”? y/n [n]:
enable “use net in IP bcast address”? y/n [n]:
enable “load rom after netbootfails”? y/n [n]:
enable “use all zero broadcast”? y/n [n]:
enable “break/abort has effect?” y/n [n]:
enable “ignore system config info?” [n]: y
change console baud rate? y/n [n]:
change boot characteristics? y/n [n]