ebgp配置实验.docVIP

R1#show run interface Loopback0 ip address 1.1.1.1 255.255.255.0 ! interface Serial1/0 ip address 18.0.0.1 255.255.255.0 serial restart-delay 0 ! interface Serial1/1 ip address 12.0.0.1 255.255.255.0 serial restart-delay 0 ! interface FastEthernet2/0 ip address 17.0.0.1 255.255.255.0 duplex auto speed auto ! router ospf 1 log-adjacency-changes redistribute connected subnets redistribute bgp 1 subnets network 1.1.1.0 0.0.0.255 area 0 network 17.0.0.0 0.0.0.255 area 0 network 18.0.0.0 0.0.0.255 area 0 ! router bgp 1 no synchronization bgp log-neighbor-changes neighbor song peer-group neighbor song remote-as 1 neighbor song update-source Loopback0 neighbor song next-hop-self neighbor 4.4.4.4 peer-group song neighbor 12.0.0.2 remote-as 2 no auto-summary ! line con 0 logging synchronous stopbits 1 line aux 0 stopbits 1 line vty 0 4 ! ! end R1#sh ip rout Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route Gateway of last resort is not set 17.0.0.0/24 is subnetted, 1 subnets C 17.0.0.0 is directly connected, FastEthernet2/0 1.0.0.0/24 is subnetted, 1 subnets C 1.1.1.0 is directly connected, Loopback0 2.0.0.0/24 is subnetted, 1 subnets B 2.2.2.0 [20/0] via 12.0.0.2, 01:53:57 48.0.0.0/24 is subnetted, 1 subnets O 48.0.0.0 [110/66] via 17.0.0.7, 00:34:45, FastEthernet2/0 18.0.0.0/24 is subnetted, 1 subnets C 18.0.0.0 is directly connected, Serial1/0 4.0.0.0/8 is variably subnetted, 2 subnets, 2 masks O 4.4.4.4/32 [110/3] via 17.0.0.7, 00:34:45, FastEtherne