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1、实验路由策略一实验拓扑图1实验一实验要求：原本网络使用EIGRP现在要求用OSPF来发现网络拓扑。实验分析：要是网络平滑过渡可先将OSPF配置好，然后理由改变EIGRP的管理距离使OSPF替换EIGRP进路由表，等到全网为OSPF后，去掉EIGRP.实验操作及结果：首先全网为EIGRP如下r1#showiproute192.168.12.0/30issubnetted,1subnetsC192.168.12.0isdirectlyconnected,Serial0/0192.168.23.0/30issubnetted,1subnetsD192.168.23.0[90/]via192
2、.168.12.2,00:01:48,Serial0/0C192.168.1.0/24isdirectlyconnected,Ethernet3/0D192.168.3.0/24[90/]via192.168.12.2,00:00:13,Serial0/0r2#showiproute192.168.12.0/30issubnetted,1subnetsC192.168.12.0isdirectlyconnected,Serial0/0192.168.23.0/30issubnetted,1subnetsC192.168.23.0isdirectlyconnected,Serial0/
3、2D192.168.1.0/24[90/]via192.168.12.1,00:02:56,Serial0/0D192.168.3.0/24[90/]via192.168.23.2,00:01:16,Serial0/2r3#showiproute192.168.12.0/30issubnetted,1subnetsD192.168.12.0[90/]via192.168.23.1,00:01:21,Serial0/0192.168.23.0/30issubnetted,1subnetsC192.168.23.0isdirectlyconnected,Serial0/0D192.168
4、.1.0/24[90/]via192.168.23.1,00:01:21,Serial0/0C192.168.3.0/24isdirectlyconnected,Ethernet3/0现在在每个路由器都配置OSPF能发现都建立邻居，但没进路由表r1#showipospfneighborNeighborIDPriStateDeadTimeAddressInterface192.168.23.10FULL/-00:00:32192.168.12.2Serial0/0r2#showipospfneighborNeighborIDPriStateDeadTimeAddressInterfac
5、e192.168.23.20FULL/-00:00:35192.168.23.2Serial0/2192.168.12.10FULL/-00:00:31192.168.12.1Serial0/0r3#showipospfneighborNeighborIDPriStateDeadTimeAddressInterface192.168.23.10FULL/-00:00:32192.168.23.1Serial0/0r1#showiproute192.168.12.0/30issubnetted,1subnetsC192.168.12.0isdirectlyconnected,Seria
6、l0/0192.168.23.0/30issubnetted,1subnetsD192.168.23.0[90/]via192.168.12.2,00:01:48,Serial0/0C192.168.1.0/24isdirectlyconnected,Ethernet3/0D192.168.3.0/24[90/]via192.168.12.2,00:00:13,Serial0/0r2#showiproute192.168.12.0/30issubnetted,1subnetsC192.168.12.0isdirectlyconnected,Serial0/0192.168.23.0/
7、30issubnetted,1subnetsC192.168.23.0isdirectlyconnected,Serial0/2D192.168.1.0/24[90/]via192.168.12.1,00:02:56,Serial0/0D192.168.3.0/24[90/]via192.168.23.2,00:01:16,Serial0/2r3#showiproute192.168.12.0/30issubnetted,1subnetsD192.168.
