krimson (Cisco 2500 Router) krimson#show running-config Building configuration...
Current configuration : 5055 bytes ! version 12.2 service timestamps debug datetime msec service timestamps log datetime msec no service passWord-encryption ! hostname krimson ! logging buffered 500000 debugging no logging console enable password ! username kevin password 0 ip subnet-zero no ip domain-lookup ! isdn switch-type basic-net3 ! interface Ethernet0 ip address 10.200.16.30 255.255.255.0 no ip route-cache no ip mroute-cache no cdp enable
bandwidth 64 no ip address encapsulation frame-relay no ip route-cache no ip mroute-cache ! interface Serial1.1 point-to-point
!--- Point-to-point Frame Relay subinterface
ip address 10.5.5.2 255.255.255.0 no ip route-cache frame-relay interface-dlci 20 ! interface BRI0
!--- Backup physical interface
description Backup ISDN, Nr. 4420038 no ip address encapsulation ppp no ip route-cache no ip mroute-cache load-interval 30 no keepalive dialer pool-member 1
!--- BRI 0 is a member of dialer pool 1
isdn switch-type basic-net3 no fair-queue no cdp enable ppp authentication chap ! interface Dialer0
!--- Logical interface for the backup
ip address 10.9.9.1 255.255.255.0
!--- The dialer is in the same network as the remote dialer interface
encapsulation ppp no ip route-cache no ip mroute-cache dialer pool 1
!--- Dialer pool 1. BRI 0 is a member of this pool
dialer remote-name kevin
!--- Authenticated remote name of the peer. !--- Verify that this name exactly matches the authenticated name !--- of the remote dialer
dialer string 6120
!--- Number for outbound call. For inbound calls this is not needed
dialer watch-group 1
!--- Enable dialer watch on this backup interface. !--- Watch the route specified with dialer watch-list 1
dialer-group 1
!--- Apply interesting traffic defined in dialer-list 1
no cdp enable ppp authentication chap ! ! router ospf 10 log-adjacency-changes network 10.5.5.0 0.0.0.255 area 0 network 10.7.7.0 0.0.0.255 area 0 network 10.9.9.0 0.0.0.255 area 0 ! no ip classless ip route 0.0.0.0 0.0.0.0 10.200.16.1
!--- Default route through ethernet 0
no ip http server ! 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
!--- All other IP traffic is interesting
dialer watch-list 1 ip 10.8.8.0 255.255.255.0
!--- This defines the route(s) to be watched. !--- This exact route(including subnet mask) must exist in the routing table. !--- Use the dialer watch-group 1 command to apply this list to the backup !--- interface (interface dialer 0)
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 privilege level 15 line aux 0 transport input all line vty 0 4 exec-timeout 0 0 password login ! end kevin(2500) kevin#show running-config version 12.2 service timestamps debug datetime msec service timestamps log datetime msec ! hostname kevin ! username krimson password 0 ! isdn switch-type basic-net3 ! ! interface Loopback0 ip address 10.8.8.1 255.255.255.0
!--- This is the network the remote side is watching
ip ospf network point-to-point ! interface Loopback1 ip address 172.19.0.1 255.255.255.255 ! interface Ethernet0 ip address 10.200.17.26 255.255.255.0 ! interface Serial0 no ip address encapsulation frame-relay ! interface Serial0.1 point-to-point
!--- Primary link (Frame Relay sub-interface)
ip address 10.5.5.1 255.255.255.0 frame-relay interface-dlci 20 ! interface BRI0
!--- Physical interface
no ip address encapsulation ppp dialer pool-member 1
!--- Member of dialer pool 1
isdn switch-type basic-net3 no cdp enable ppp authentication chap ! interface Dialer0
!--- Logical interface for incoming call
ip address 10.9.9.2 255.255.255.0
!--- The dialer is in the same network as the remote dialer interface
encapsulation ppp dialer pool 1
!--- Dialer pool 1. BRI 0 is a member of this pool
dialer remote-name krimson
!--- Authenticated remote name of the peer. !--- Verify that this name exactly matches the authenticated name !--- of the remote dialer.
dialer-group 1
!--- Apply interesting traffic defined in dialer-list 1
no cdp enable ppp authentication chap ! router ospf 10 log-adjacency-changes network 10.5.5.0 0.0.0.255 area 0 network 10.8.8.0 0.0.0.255 area 0
!--- Advertise the network the remote router is watching
network 10.9.9.0 0.0.0.255 area 0 ! ip classless ip route 0.0.0.0 0.0.0.0 10.200.17.1 no ip http server ! dialer-list 1 protocol ip permit
!--- Interesting traffic definition. All IP traffic is interesting. !--- This is applied to BRI0 using dialer-group 1. !--- Since the remote router activates and deactivates the backup, this router !--- does not need to restrict interesting traffic
no cdp run ! line con 0 exec-timeout 0 0 line aux 0 modem InOut line vty 0 4 exec-timeout 0 0 password login ! end
Note: The configuration of maui-nas-05 does not include any backup-related commands. For maui-nas-05, the backup link is just another dialin client.