Specifications

Chapter 5 Configuring ISDN

Leased-Line ISDN Connection to a Central-Site Router

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Cisco 1700 Series Router Software Configuration Guide

78-5407-03

Configuring Dynamic IP Routing

Follow these steps to configure the router for dynamic IP routing.

Verifying Your Configuration

You can verify your configuration by confirming connectivity to the central-site

router.

Step 1 From the privileged EXEC command mode, enter the ping command, followed by

the IP address of the central-site route to have the router dial the central-site

router. You should see output similar to the following:

Router# ping 192.168.37.40

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.37.40, timeout is 2 seconds:

.!!!!

Success rate is 80 percent (4/5), round-trip min/avg/max = 40/43/48 ms

Router#

*Mar 1 03:37:46.526: %LINK-3-UPDOWN: Interface BRI0:1, changed state

to up

Step6

ip unnumbered Virtual-Template1 Enable IP routing on this interface without

assigning an IP address.

Step7

encapsulation ppp Set the encapsulation method on this interface

to PPP.

Step8

ppp multilink Enable multilink PPP on this interface.

Step9

exit Exit configuration mode for this interface.

Command Task

Step1

ip classless Configure the router to forward packets

addressed to a subnet of a network with no

network default route.

Step2

ip route 0.0.0.0 0.0.0.0 192.168.40.41 Specify dynamic routing.