Specifications

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Cisco 7100 Series VPN Router Installation and Configuration Guide
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Chapter 4 Performing a Basic Startup Configuration
Replacing or Recovering a Lost Password
Note The key to recovering a lost password is to set the configuration register bit 6 (0x0040) so that
the startup configuration (usually in NVRAM) is ignored. This allows you to log in without
using a password and to display the startup configuration passwords.
Step 4 Power cycle the router by turning power off and then back on.
Step 5 Log in to the router and enter the privileged EXEC mode.
Step 6 Enter the show startup-config command to display the passwords.
Step 7 Recover or replace the displayed passwords.
Step 8 Change the configuration register back to its original setting.
Note To recover a lost password if the Break function is disabled on the router, you must have
physical access to the router.
Details of the Password Recovery Procedure
Complete the following steps to recover or replace a lost enable, enable secret, or console login
password:
Step 1 Attach an ASCII terminal to the console port on your router.
Step 2 Configure the terminal to operate at 9600 baud, 8 data bits, no parity, and 2 stop bits.
Step 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.
Router> show version
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).
Then proceed to Step 5.
Step 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>).
Step 6 Set the configuration register using the configuration register utility—enter the confreg command at the
ROM monitor prompt as follows:
rommon1> confreg
Step 7 Answer yes to the “enable ignore system config info?” question and note the current configuration
register settings.
Step 8 Initialize the router by entering the reset command as follows:
rommon2> reset
The router initializes, the configuration register is set to 0x142, and the router boots the system
image from Flash memory and enters the System Configuration Dialog (setup) as follows: