Filter
Top Products
2-7
Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide
OL-2239-03
Chapter2 Configuring the Cable Modem Termination System for the First Time
Configuration Fundamentals for the Cisco uBR7200 Series
Note It is possible to recover the enable or console login password. The enable secret password is encrypted,
however, and must be replaced with a new enable secret password.
Overview of the Password Recovery Process
Following is an overview of the general steps in the password recovery procedure:
Step1 If you can log in to the router, enter the show version command to determine the existing configuration
register value.
Step2 Press the Break key to get to the bootstrap program prompt (ROM monitor). You might need to reload
the system image by power cycling the router.
Step3 Change the configuration register so that the following functions are enabled:
• Break
• Ignore startup configuration
• Boot from Flash memory
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. Cisco recommends setting
the configuration register to 0x142.
Step4 Power cycle the router by turning power off and then back on.
Step5 Log in to the router and enter the privileged EXEC mode.
Step6 Enter the show startup-config command to display the passwords.
Step7 Recover or replace the displayed passwords.
Step8 Change the configuration register back to its original setting.
Note To recover a lost password if Break is disabled on the router, you must have physical access to the router.
Replacing or Recovering Passwords
Complete the following steps to recover or replace a lost enable, enable secret, or console login
password:
Step1 Attach an ASCII terminal to the console port on your Cisco uBR7200 series router.
Step2 Configure the terminal to operate at 9600 baud, 8 data bits, no parity, and 2 stop bits.
Step3 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 later use. If you cannot log in to the router at all,
continue with the next step.
Step4 Press the Break key or send a Break from the console terminal.