Additional Configuration and Maintenance Tasks
70
Performance Route Processor Installation and Configuration Guide
OL-11656-01
Recovering a Lost Password
This section provides information on how to recover a lost password.
The following overview describes this process:
1.
Use the
show version
command to note the existing software configuration
register value.
2.
Break to the bootstrap program prompt.
3.
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.
4.
Enter privileged level in the system EXEC.
5.
Use the
show startup-config
command to display the enable password.
6.
Change the configuration register value back to its original setting.
To recover a lost password, follow these steps:
Note
If the enable password is encrypted, the following password recovery procedure
will not work and you will have to reconfigure the system; you will not be able to
reboot it. To reconfigure the system, use the displayed configuration, which is
shown using the
show startup-config
EXEC command. (See
Step 11
.)
Step 1
Attach an ASCII terminal to the PRP console port.
Step 2
Configure the terminal to operate at 9600 bps, 8 data bits, no parity, 2 stop bits (or
to the settings at which the console port is set).
Step 3
Enter the
show version
command to display the existing configuration register
value. Note this value for later use.
Step 4
If Break is disabled, power cycle the router. (To power cycle, turn off power, wait
5 seconds, then turn it on again.) If Break is enabled on the router, press the Break
key or send a break by holding down the
Control
key and pressing the right square
bracket key (^]); then proceed to Step 5.
