Specifications

Chapter 5 Configuring ISDN

Dial-Up ISDN Connection to a Central-Site Router

5-16

Cisco 1700 Series Router Software Configuration Guide

78-5407-03

Configuring Command-Line Access to the Router

Follow these steps to configure some parameters that control access to the router.

Troubleshooting

If you are having problems or the if output that you received during the

verification steps is very different from that shown in the command output

examples, you can troubleshoot your router, using the Cisco IOS debug

commands. The debug commands provide extensive command output that is not

included in this document.

Caution If you are not familiar with Cisco IOS debug commands, you should read the

“Using Debug Commands” section in the “Introduction to Router

Configuration” chapter before attempting any debugging.

Following are debug commands that are helpful when troubleshooting ISDN with

IP routing. Follow these commands with the ping command to display the debug

output:

• debug dialer events

• debug isdn events

• debug isdn q931

Command Task

Step1

line console 0 Specify the console terminal line.

Step2

exec-timeout 5 Set the interval that the EXEC command

interpreter waits until user input is detected.

Step3

line vty 0 4 Specify a virtual terminal for remote console

access.

Step4

password <lineaccess> Specify a password on the line.

Step5

Step6

end Exit configuration mode.