Cisco Systems 1700 manual Problem Solving, Reset the Configuration Register Value

Chapter 3 Troubleshooting

Step 3 Enter the config-registercommand and the original configuration register value that you recorded in Step 5.

Step 4 Press Ctrl-Zto exit configuration mode.

Router(config)# Ctrl-Z

Step 5 Save your configuration changes:

Router# copy running-config startup-config

Reset the Configuration Register Value

Once you have recovered or reconfigured a password

Step 1 Enter the configure terminal command to enter configuration mode:

Router# configure terminal

Step 2 Enter the config-registercommand and the original configuration register value that you recorded in Step 5.

Step 3 Press Ctrl-Zto exit configuration mode:

Router(config)# Ctrl-Z

Step 4 Reboot the router, and enter the recovered password.

Problem Solving

The key to problem solving is to isolate the problem to a specific subsystem by comparing what the router is doing to what it should be doing.

When problem solving, consider the following subsystems of the router:

•WAN interface cards—Refer to the LEDs on the cards and the LEDs on the router front panel to help identify a failure. For more information on WAN interface cards, refer to the Cisco WAN Interface Cards Hardware Installation Guide that comes with each card.

•Cables—Check all the external cables that connect the router to the network.