! version 12.4 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname ABR5 ! ! ! ! ! ! ! ! ! ! ! ! ! ! spanning-tree mode pvst ! ! ! ! interface FastEthernet0/0 ip address 150.1.50.1 255.255.255.0 duplex auto speed auto ! interface FastEthernet0/1 no ip address duplex auto speed auto shutdown ! interface Serial0/0/0 no ip address clock rate 2000000 shutdown ! interface Serial0/1/0 ip address 155.1.45.5 255.255.255.0 clock rate 2000000 ! interface Vlan1 no ip address shutdown ! router ospf 100 router-id 5.5.5.5 log-adjacency-changes area 45 virtual-link 4.4.4.4 network 150.1.50.0 0.0.0.255 area 50 network 155.1.45.0 0.0.0.255 area 45 ! ip classless ! ! ! ! ! ! ! line con 0 line vty 0 4 login ! ! ! end