BRI-to-BRI

admin

　maui-soho-01 (1600)
　　
　　maui-soho-01#show running-config
　　Building configuration...
　　
　　Current configuration : 1656 bytes
　　!
　　version 12.1
　　no service single-slot-reload-enable
　　service timestamps debug datetime msec
　　service timestamps log datetime msec
　　
　　!
　　hostname maui-soho-01
　　!
　　logging rate-limit console 10 except errors
　　aaa new-model
　　aaa authentication login default local
　　aaa authentication login NO_AUTHEN none
　　aaa authentication ppp default local
　　!--- basic AAA configuration for PPP calls
　　enable secret 5
　　!
　　username admin password
　　username maui-nas-05 password cisco
　　!--- username for remote router (maui-nas-05) and shared secret
　　!--- (used for CHAP authentication)
　　!--- Shared secret must be the same on both sides.
　　ip subnet-zero
　　!
　　isdn switch-type basic-ni
　　!
　　interface Loopback0
　　ip address 172.17.1.1 255.255.255.0
　　!--- The loopback address will be used by OSPF for the router ID.
　　!
　　interface Ethernet0
　　ip address 172.16.1.1 255.255.255.0
　　!
　　interface Serial0
　　no ip address
　　shutdown
　　no fair-queue
　　!
　　interface BRI0
　　!--- BRI interface used for DDR dialout
　　ip address 172.20.10.2 255.255.255.0
　　!--- IP address
　　!--- The remote address is in the same subnet.
　　encapsulation ppp
　　ip ospf demand-circuit
　　!--- This forces OSPF to keep the routing table intact when the DDR link
　　!--- is down. This should only be configured on one router for a
　　!--- point-to-point circuit.
　　dialer idle-timeout 900
　　!--- Idle timeout is set to 900 seconds (15 minutes).
　　!--- The link will be disconnected if there is no interesting traffic
　　!--- for 900 secs.
　　dialer map ip 172.20.10.1 name maui-nas-05 broadcast 5551111
　　dialer map ip 172.20.10.1 name maui-nas-05 broadcast 5551112
　　!--- dialer map statements for the remote router
　　!--- The name must match the one used by the remote router to identify
　　!--- itself. The broadcast keyword is required to send broadcast traffic
　　!--- over the link(for OSPF). The two different phone numbers correspond
　　!--- to the b-channels of the remote side. The multiple statements allow
　　!--- the router to dial the second number if the first number is busy.
　　dialer load-threshold 80 outbound
　　!--- This set the load level for traffic at which additional connections
　　!--- will be added to the Multilink PPP bundle.!--- Load level values range from 1 (unloaded) to 255 (fully loaded).
　　!--- The threshold in this case is 80/255 = 32%.
　　dialer-group 1
　　!--- apply interesting traffic definition from dialer-list 1
　　isdn switch-type basic-ni
　　isdn spid1 51255522220101 5552222
　　isdn spid2 51255522230101 5552223
　　ppp authentication chap
　　!--- Use chap authentication.
　　ppp multilink
　　!--- Use multilink to bring up both BRI channels.
　　!
　　router ospf 5
　　log-adjacency-changes
　　network 172.16.1.0 0.0.0.255 area 0
　　network 172.17.1.0 0.0.0.255 area 0
　　network 172.20.10.0 0.0.0.255 area 0
　　!
　　ip classless
　　ip route 172.20.0.0 255.255.0.0 172.20.10.0
　　no ip http server
　　!
　　access-list 101 remark Define Interesting Traffic
　　access-list 101 deny ospf any any
　　!--- mark OSPF as uninteresting
　　!--- This will prevent OSPF hellos from keeping the link up.
　　access-list 101 permit ip any any
　　dialer-list 1 protocol ip list 101
　　!--- Interesting traffic is defined by access-list 101.
　　!--- This is applied to BRI0 using dialer-group 1.
　　!
　　line con 0
　　exec-timeout 0 0
　　login authentication NO_AUTHEN
　　transport input none
　　line vty 0 4
　　!
　　endmaui-nas-05 (3640)
　　maui-nas-05#show running-config
　　Building configuration...
　　
　　Current configuration:
　　!
　　version 12.1
　　service timestamps debug datetime msec
　　service timestamps log datetime msec
　　!
　　hostname maui-nas-05
　　!
　　aaa new-model
　　aaa authentication login default local
　　aaa authentication login NO_AUTHEN none
　　aaa authentication ppp default local
　　!--- basic AAA configuration for PPP calls
　　enable secret 5
　　!
　　username admin password 7
　　username maui-soho-01 password 7 cisco
　　!--- username for remote router (maui-soho-01) and shared secret
　　!--- (used for CHAP authentication)
　　!--- Shared secret must be the same on both sides.
　　
　　ip subnet-zero
　　!
　　isdn switch-type basic-ni
　　!
　　interface Loopback0
　　ip address 172.22.1.1 255.255.255.0
　　!--- The loopback address is used by OSPF for the router ID.
　　!
　　interface Ethernet0/0
　　ip address 172.22.53.105 255.255.255.0
　　!
　　interface Ethernet0/1
　　no ip address
　　shutdown
　　!
　　interface BRI1/0
　　!--- BRI interface used to accept dialin
　　ip address 172.20.10.1 255.255.255.0
　　!--- IP address
　　!--- The remote address is in the same subnet.
　　encapsulation ppp
　　dialer idle-timeout 900
　　!--- Idle timeout is set to 900 seconds (15 minutes).
　　!--- Set this value to be equal to or higher than the idle-timeout on the
　　!--- client side. A higher idle-timeout permits the client side to
　　!--- determine when to bring down the link.
　　!
　　dialer map ip 172.20.10.2 name maui-soho-01 broadcast
　　!--- dialer map statement for the BRI interface of the remote router
　　!--- The name must be the one used by the remote router to identify
　　!--- itself. The broadcast keyword is required to send broadcast traffic
　　!--- over the link(for OSPF). Note: There is no phone number, as we are
　　!--- not configuring this side to dial. If you want this router to dial,
　　!--- add the remote side phone number to the dialer map statement
　　dialer-group 1
　　!--- apply interesting traffic definition from dialer-list 1
　　isdn switch-type basic-ni
　　isdn spid1 51255511110101 5551111
　　isdn spid2 51255511120101 5551112
　　ppp authentication chap
　　ppp multilink
　　!--- allow multilink connections
　　!
　　! <<--unused interface configurations have been removed.
　　!
　　router ospf 5
　　network 172.20.10.0 0.0.0.255 area 0
　　network 172.22.1.0 0.0.0.255 area 0
　　network 172.22.53.0 0.0.0.255 area 0
　　default-information originate always
　　!--- transmit OSPF default information
　　!--- This may be required for remote router to use the BRI DDR link.
　　!
　　ip classless
　　ip route 0.0.0.0 0.0.0.0 Ethernet0/0
　　ip route 172.22.0.0 255.255.0.0 172.22.53.0
　　no ip http server
　　!
　　dialer-list 1 protocol ip permit
　　!--- All IP traffic is defined interesting.
　　!--- This is applied to BRI0 using dialer-group 1.
　　!
　　line con 0
　　login authentication NO_AUTHEN
　　transport input none
　　line 97 102
　　line aux 0
　　line vty 0 4
　　!
　　end