Details of the Password Recovery Procedure
Perform the following steps to recover or replace a lost enable, enable secret, or console login password:
SUMMARY STEPS
1.
Attach an ASCII terminal to the console port on your router.
2.
Configure the terminal to operate at 9600 baud, 8 data bits, no parity, and 1 stop bit (9600 8N1).
3.
If you can log in to the router as a nonprivileged user, enter the show version command to display the
existing configuration register value. Note the value for use later and proceed to Step 6. If you cannot log
in to the router at all, go to the next step.
4.
Press the Break key or send a Break from the console terminal. If Break is enabled, the router enters the
ROM monitor, indicated by the ROM monitor prompt (rommon1>). Proceed to Step 6. If Break is disabled,
power cycle the router (turn the router off or unplug the power cord, and then restore power after waiting
30 seconds). Then proceed to Step 5.
5.
Within 60 seconds of restoring the power to the router, press the Break key or send a Break. This action
causes the router to enter the ROM monitor and display the ROM monitor prompt (rommon1>).
6.
Set the configuration register using the configuration register utility; enter the
confreg
command at the
ROM monitor prompt as follows:
7.
Answer yes to the enable
ignore system config info?
question, and note the current configuration register
settings.
8.
Initialize the router by entering the reset command as follows:
9.
Enter no in response to the System Configuration Dialog prompts until the following message is displayed:
10.
Press Return. The user EXEC prompt is displayed as follows:
11.
Enter the enable command to enter privileged EXEC mode. Then enter the show startup-config command
to display the passwords in the configuration file as follows:
12.
Scan the configuration file display looking for the passwords (the enable passwords are usually near the
beginning of the file, and the console login or user EXEC password is near the end). The passwords
displayed look something like this:
13.
Enter the configure memory command to load the startup configuration file into running memory. This
action allows you to modify or replace passwords in the configuration.
14.
Enter the privileged EXEC configure terminal command to enter configuration mode:
15.
Change all three passwords using the following commands:
16.
You must configure all interfaces to be not administratively shut down as follows:
17.
Use the config-register command to set the configuration register to the original value noted in Step 3 or
Step 8, or to the factory default value 0x2102 as follows:
18.
Press Ctrl-Z (hold down the Control key while you press Z) or enter end to exit configuration mode and
return to the EXEC command interpreter.
19.
Enter the copy running-config startup-config command to save the new configuration to NVRAM.
20.
Enter the reload command to reboot the router.
21.
Log in to the router with the new or recovered passwords.
Cisco ASR 1000 Series Router Hardware Installation Guide
657
Troubleshooting Initial Startup Problems
Details of the Password Recovery Procedure
Содержание ASR 1001
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