Remote------------------router\


hostname branch1 ! username main password secret1 ! isdn switch-type basic-dms100 ! interface Ethernet 0  ip address 131.108.64.190 255.255.255.0 ! interface BRI 0 encapsulation PPP ip address 131.108.157.1 255.255.255.0 isdn spid1 415988488501 9884885 isdn spid2 415988488602 9884886 ppp authentication chap dialer idle-timeout 300 dialer map IP 131.108.157.2 name main 4883 dialer-group 1 ! ip route 131.108.0.0 255.255.0.0 131.108.157.2    ! ip route 0.0.0.0 0.0.0.0 131.108.157.2 ! dialer-list 1 protocol ip permit










main router---------------------
hostname main ! username branch1 password secret1 username branch2 password secret2 ! isdn switch-type basic-dms100 ! interface Ethernet 0 ip address 131.108.38.1 255.255.255.0 ! interface BRI 0 encapsulation PPP ip address 131.108.157.2 255.255.255.0 isdn spid1 415988488201 9884882 isdn spid2 415988488302 9884883 ppp authentication chap dialer idle-timeout 300 dialer map IP 131.108.157.1 name branch1 4885 dialer-group 1 ! ip route 131.108.64.0 255.255.255.0 131.108.157.1 !

ISDN View

his document uses a Cisco 3103 (1E/1BRI) in the example. It is configured to route IP over a Dial-on-Demand Routing (DDR) link.

Switch types refer to the ISDN software that runs on the switch, and not the manufacturer or the model.

This document uses static routing, and includes only the relevant and necessary commands. Either of the routers can initiate the connection, and all IP packets are "interesting," which means that the routers can dial, and can reset the DDR idle timer. No routing protocol is configured in this example, because routing updates can keep the link up indefinitely, and incur usage charges. This configuration helps you to connect a home or remote office where IP is the only protocol in use.

hai