Installation guide

2-5

Cisco uBR7100 Series Universal Broadband Router Software Configuration Guide

OL-2238-03

Chapter 2 Configuring the Cisco CMTS for the First Time

Understanding Configuration Fundamentals

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 later use.

If you cannot log in to the router at all, continue with the next step.

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

(

rommon n>), where n is the number of the command line. 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). 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 (

rommon 1>).

Step 6 To set the configuration register on a Cisco uBR7100 series router, use the configuration register utility

by entering the confreg command at the ROM monitor prompt as follows:

rommon 1> confreg

Answer yes to the enable “ignore system config info?” question and note the current configuration

Step 7 Initialize the router by entering the reset command as follows:

rommon 2> reset

The router will initialize, the configuration register will be set to 0x142, and the router will boot the

system image from Flash memory and enter the System Configuration dialog (setup) as follows:

--- System Configuration Dialog --

Step 8 Enter no in response to the System Configuration dialog prompts until the following message displays:

Press RETURN to get started!

Step 9 Press Return. The user EXEC prompt displays as follows:

Router>

Step 10 Enter the enable command to enter the privileged EXEC mode. Then enter the show startup-config

command to display the passwords in the configuration file as follows:

Router# show startup-config

Step 11 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 will look something like this:

enable secret 5 $1$ORPP$s9syZt4uKn3SnpuLDrhuei

enable password 23skiddoo

line con 0

password onramp

The enable secret password is encrypted and cannot be recovered; it must be replaced. The enable and

console passwords can be encrypted or clear text. Proceed to the next step to replace an enable secret,

console login, or enable password. If there is no enable secret password, note the enable and console