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Cisco 1700 Series Router Software Configuration Guide

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Chapter 5 Configuring ISDN

Dial-Up ISDN Connection to a Central-Site Router

Confirming Multilink PPP Configuration for the B2 Channel

Perform the two procedure in this section to verify that multilink PPP is

configured on the ISDN B2 channel.

Step 1 From the privileged EXEC command mode, confirm that the ISDN line is

connected to the remote site by entering the ping command, followed by the IP

address of the central-site router:

Router# ping 192.168.37.40

Step 2 Create enough network traffic so that the second ISDN B channel dials the remote

site.

Note One way to perform Step 2 is to reduce the amount of data needed to

cause the second B channel to dial. To reduce the amount (called the

threshold), use the dialer load-threshold command, which is

described in Step 11 of the “Configuring the ISDN Interface” section

on page 5-6.

Step 3 Check LEDs B1 and B2.

If both LEDs are lit solid, multilink PPP is correctly configured for both ISDN

B channels.

Step 4 To continue configuration, reenter global configuration mode.

Tips

If you are having problems, do the following:

• Confirm that your router is configured with the correct IP address.

• Confirm that you have correctly configured the static IP routes with the

ip route command.

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Cisco 1700 Series Spécifications Page 73