Specifications

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Cisco 1700 Series Router Software Configuration Guide
78-5407-03
Chapter 5 Configuring ISDN
Leased-Line ISDN Connection to a Central-Site Router
Clearing the ISDN Interface
Follow these steps to clear the IP address from the ISDN interface.
Configuring the ISDN Subinterfaces
Follow these steps to create and configure two ISDN subinterfaces, which connect
your router to the central-site router over the wide-area network.
Step9
no shutdown Enable the interface and the configuration
changes you have just made on the interface.
Step10
exit Exit configuration mode for this interface.
Command Task
Command Task
Step1
interface BRI0 Enter configuration mode for the BRI
interface.
Step2
no ip address Disable IP routing on the BRI0 interface.
Step3
exit Exit configuration mode for this interface.
Command Task
Step1
interface BRI0:1 Enter configuration mode for the BRI0:1
subinterface
Step2
ip unnumbered Virtual-Template1 Enable IP routing on this interface without
assigning an IP address.
Step3
encapsulation ppp Set the encapsulation method on this interface
to PPP.
Step4
ppp multilink Enable multilink PPP on this interface.
Step5
interface BRI0:2 Enter configuration mode for the BRI0:2
subinterface.