OSPF虚链路配置 在OSPF中虚链路可以两个普通区域相连而不通过骨干区域Area 0 连接。这样容易区域的扩展。
虚链路配置命令 Router3(config)#router ospf 区域号 Router3(config-router)#area 中间夹的区域号 virtual-link 对方的Router-ID 1、配置IP Router1 Loopback口 192.168.100.10 f0/0 192.168.10.1 Router2 F0/0 192.168.10.2 f0/1 192.168.20.1 Router3 F0/1 192.168.20.2 f0/0 192.168.30.1 Router4 Loopback口 192.168.110.10 f0/0 192.168.30.2 2、配置各路由器的OSPF Router1配置 Router1(config)#routeospf 1 Router1(config-router)#network192.168.100.0 0.0.0.255 area 0 Router1(config-router)#network192.168.10.0 0.0.0.255 area 0 Router2配置 Router2(config)#routospf 1 Router2(config-router)#network192.168.10.0 0.0.0.255 area 0 Router2(config-router)#network192.168.20.0 0.0.0.255 area 1 Router2(config-router)#exi Router3配置 Router3(config)#routerospf 1 Router3(config-router)#network192.168.20.0 0.0.0.255 area 1 Router3(config-router)#network192.168.30.0 0.0.0.255 area 100 Router3(config-router)# Router4配置 Router(config)#routerospf 1 Router(config-router)#network192.168.110.0 0.0.0.255 area 100 Router(config-router)#network192.168.30.0 0.0.0.255 area 100 Router(config-router)# 3、虚链路配置 Router2配置 Router2(config)#routerospf 1 Router2(config-router)#area1 virtual-link 192.168.30.1 Router2(config-router)# Router3配置 Router3(config)#routerospf 1 Router3(config-router)#area1 virtual-link 192.168.20.1 4、查看各个路由器的路由表都相同 Router1#show iproute Codes: C -connected, S - static, I - IGRP, 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 - OSPFexternal type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 -IS-IS level-2, ia - IS-IS inter area * - candidate default, U - per-userstatic route, o - ODR P - periodic downloaded static route Gateway of lastresort is not set C 192.168.10.0/24 is directly connected,FastEthernet0/0 O IA192.168.20.0/24 [110/2] via 192.168.10.2, 00:04:29, FastEthernet0/0 O IA192.168.30.0/24 [110/3] via 192.168.10.2, 00:02:30, FastEthernet0/0 C 192.168.100.0/24 is directly connected,Loopback0 192.168.110.0/32 is subnetted, 1 subnets O IA 192.168.110.10 [110/4] via 192.168.10.2,00:02:30, FastEthernet0/0 |