Router1-Client
　　router1#show running-config
　　Building configuration...
　　
　　Current configuration:
　　!
　　version 11.3
　　service timestamps debug uptime
　　service timestamps log uptime
　　no service password-encryption
　　!
　　hostname router1
　　!
　　username router2 password 0 snap
　　!-- Username for remote router (router2) and shared secret.
　　!-- Shared secret(used for CHAP) must be the same on both sides.
　　isdn switch-type basic-5ess
　　!
　　interface Loopback0
　　ip address 10.2.2.1 255.255.255.0
　　!
　　interface Ethernet0
　　ip address 192.168.100.1 255.255.255.0
　　!
　　interface Serial0
　　no ip address
　　no ip mroute-cache
　　shutdown
　　no fair-queue
　　!
　　interface Serial1
　　no ip address
　　shutdown
　　!
　　interface BRI0
　　ip address 10.1.1.1 255.255.255.0
　　!-- IP address for the BRI interface.
　　encapsulation ppp
　　no keepalive
　　dialer idle-timeout 60
　　!-- Idle timeout(in seconds)for this BRI interface.
　　dialer map ip 10.1.1.2 name router2 broadcast 96666600
　　!-- This defines the ip address, router name, and dial string of the remote router.
　　! -- This will be used for normal DDR connections to the peer.
　　Dialer map snapshot 60 name router2 broadcast 96666600
　　!-- alternatively use: dialer map snapshot 60 96666600
　　!-- This specifies a sequence number of 60 to identify this dialer map and a dial
　　!-- string of 96666600 used to initiate a call during the snapshot active period.
　　!-- For more information about this command refer to the Command Summary section
　　!-- of this document
　　dialer hold-queue 10
　　dialer-group 1
　　!-- apply interesting traffic defined in dialer-list 1.
　　isdn switch-type basic-5ess
　　isdn T203 10000
　　snapshot client 5 30 suppress-statechange-update dialer
　　!-- This is a client side with an active period of 5 minutes and quiet period of
　　!-- 30 minutes. Routing table updates are not exchanged when other interesting
　　!-- traffic has activated the interface. This client is able initiate a call to
　　!-- start the active period for exchanging routing table updates. For more
　　!-- information about this command refer to the Command Summary section of this
　　!-- document
　　ppp authentication chap
　　!-- use chap authentication.
　　hold-queue 75 in
　　!
　　router igrp 100
　　network 10.0.0.0
　　network 192.168.100.0
　　!
　　ip classless
　　!
　　dialer-list 1 protocol ip permit
　　!-- Interesting traffic is defined by dialer-list 1.
　　!-- This is applied to BRI0 using dialer-group 1.
　　line con 0
　　line aux 0
　　line vty 0 4
　　login
　　!
　　end
　　
　　Router2- Server
　　router2#show running-config
　　Building configuration...
　　
　　Current configuration:
　　!
　　version 12.2
　　no service single-slot-reload-enable
　　service timestamps debug uptime
　　service timestamps log uptime
　　no service password-encryption
　　!
　　hostname router2
　　!
　　logging rate-limit console 10 except errors
　　!
　　username router1 password 0 snap
　　!-- Username for remote router (router1) and shared secret.
　　!-- Shared secret(used for CHAP) must be the same on both sides.
　　ip subnet-zero
　　no ip finger
　　!
　　no ip dhcp-client network-discovery
　　isdn switch-type basic-5ess
　　!
　　interface Loopback0
　　ip address 10.3.3.1 255.255.255.0
　　!
　　interface Ethernet0
　　ip address 192.168.200.1 255.255.255.0
　　!
　　interface Serial0
　　no ip address
　　shutdown
　　no fair-queue
　　!
　　interface Serial1
　　no ip address
　　shutdown
　　!
　　interface BRI0
　　ip address 10.1.1.2 255.255.255.0
　　!-- IP address for the BRI interface.
　　Encapsulation ppp
　　no keepalive
　　dialer idle-timeout 60
　　!-- Idle timeout(in seconds)for this BRI interface.
　　Dialer map ip 10.1.1.1 name router1 broadcast 96666700
　　!-- Dialer map for the BRI interface of the remote router.
　　Dialer hold-queue 10
　　dialer-group 1
　　!-- Apply interesting traffic defined in dialer-list 1.
　　isdn switch-type basic-5ess
　　cdapi buffers regular 0
　　cdapi buffers raw 0
　　cdapi buffers large 0
　　snapshot server 5 dialer
　　!-- The snapshot server command specifies active period interval in minutes.
　　!-- The dialer parameter allows the router to make a DDR call to initiate a snapshot
　　!-- session in the absence of other "interesting" traffic initiating a DDR call.
　　!-- For more information about this command refer to the Command Summary section of
　　!-- this document.
　　ppp authentication chap
　　!-- Use CHAP authentication.
　　!
　　router igrp 100
　　network 10.0.0.0
　　network 192.168.200.0
　　!
　　ip classless
　　ip http server
　　!
　　dialer-list 1 protocol ip permit
　　!-- Interesting traffic is defined by dialer-list 1.
　　!-- This is applied to BRI0 using dialer-group 1.
　　!
　　line con 0
　　transport input none
　　line aux 0
　　line vty 0 4
　　!
　　end