单域环境OSPF配置
OSPF（开放式最短路径优先协议）：是基于开放标准的链路状态路由选择协议。OSPF运行的三张表： 邻居列表：列出每台路由器已经建立邻接关系的全部邻居路由器。 链路状态数据库：列出网络中其他路由器的信息，由此显示全网的网络拓扑。 路由表：列出通过SPF算法计算出的到达每个相连网络的最佳路径。OSPF的度量值是cost（代价）网络拓扑Router1 F0/0<----> Router2 F0/0 Router1 F1/0<----> Router4 F1/0 Router2 F1/0<----> Router3 F1/0 Router3 F0/0<----> Router4 F0/0 VPCS V0/1<----> Router1 F2/0 VPCS V0/2<----> Router2 F2/0 VPCS V0/3<----> Router3 F2/0 VPCS V0/4<----> Router4 F2/0步骤：1、配置IPRouter1F2/0192.168.1.1 f1/0192.168.40.1F0/0192.168.10.2 pc1192.168.1.2Router2F0/0192.168.10.1 f2/0192.168.2.1F1/0192.168.20.1 pc2 192.168.2.2Router3F1/0192.168.20.2 f2/0 192.168.3.1F0/0192.168.30.1 pc3 192.168.3.2Router4F2/0192.168.4.1 f0/0192.168.30.2F1/0192.168.40.2 pc4 192.168.4.2 2、配置OSPF Router1配置Router1 (config)#router ospf1Router1 (config-router)#router-id192.168.1.1Router1 (config-router)#network192.168.1.0 0.0.0.255 area 1Router1 (config-router)#network192.168.10.0 0.0.0.255 area 1Router1 (config-router)#network 192.168.40.00.0.0.255 area 1 Router2配置Router2(config)#routerospf 1Router2(config-router)#router-id192.168.2.1Router2(config-router)#network192.168.2.0 0.0.0.255 area 1Router2(config-router)#network192.168.20.0 0.0.0.255 area 1Router2(config-router)#network192.168.10.0 0.0.0.255 area 1 Router3配置Router3(config)#routerospf 1Router3(config-router)#router-id192.168.3.1Router3(config-router)#network192.168.3.0 0.0.0.255 area 1Router3(config-router)#network192.168.30.0 0.0.0.255 area 1Router3(config-router)#network192.168.20.0 0.0.0.255 area 1 Router4配置Router4(config)#routerospf 1Router4(config-router)#router-id192.168.4.1Router4(config-router)#network192.168.4.0 0.0.0.255 area 1Router4(config-router)#network192.168.40.0 0.0.0.255 area 1Router4(config-router)#network192.168.30.0 0.0.0.255 area 1 3、查看路由器路由表Router2#show iprouteCodes: 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 - OSPFexternal type 2 i - IS-IS, su - IS-IS summary, L1 -IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidatedefault, U - per-user static route o - ODR, P - periodic downloaded staticroute Gateway of lastresort is not set O 192.168.30.0/24 via 192.168.20.2,00:04:43, FastEthernet1/0C 192.168.10.0/24 is directly connected,FastEthernet0/0O 192.168.40.0/24 via 192.168.10.2,00:04:43, FastEthernet0/0O 192.168.4.0/24 via 192.168.20.2,00:04:43, FastEthernet1/0 via 192.168.10.2,00:04:43, FastEthernet0/0C 192.168.20.0/24 is directly connected,FastEthernet1/0O 192.168.1.0/24 via 192.168.10.2,00:04:43, FastEthernet0/0C 192.168.2.0/24 is directly connected,FastEthernet2/0O 192.168.3.0/24 via 192.168.20.2,00:04:43, FastEthernet1/0 Router2#show ipospf neighborNeighbor ID PriState Dead Time Address Interface192.168.3.1 1FULL/BDR 00:00:37 192.168.20.2 FastEthernet1/0 4、pc之间物理连通VPCS 4 >ping192.168.1.2192.168.1.2icmp_seq=1 timeout192.168.1.2icmp_seq=2 time=28.000 ms192.168.1.2icmp_seq=3 time=15.000 ms192.168.1.2icmp_seq=4 time=20.000 ms192.168.1.2icmp_seq=5 time=30.000 ms VPCS 4 >ping192.168.2.2192.168.2.2icmp_seq=1 timeout192.168.2.2icmp_seq=2 time=70.000 ms192.168.2.2icmp_seq=3 time=26.000 ms192.168.2.2icmp_seq=4 time=37.000 ms192.168.2.2icmp_seq=5 time=34.000 ms VPCS 4 >ping192.168.3.2192.168.3.2icmp_seq=1 timeout192.168.3.2icmp_seq=2 time=65.000 ms192.168.3.2icmp_seq=3 time=30.000 ms192.168.3.2icmp_seq=4 time=18.000 ms192.168.3.2icmp_seq=5 time=26.000 ms这是什么东东啊 有道理。。。 这是什么东东啊 恋爱就是无数个饭局，结婚就是一个饭局。 内练一口气，外练一口屁。 恐龙说：“遇到色狼，不慌不忙；遇到禽兽，慢慢享受……”
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