CCNP闫辉老师讲解【递归路由】实验手册(课堂笔记)

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1、递归路由实验手册实验要求：①R1能够R4的4个子网，并且实现路径的冗余备份②实现非对称路由:R1的ICMPecho包和R4的ICMPreply包使用不同路径分析：如果只在R2上配置静态路由：iproute10.0.1.0255.255.255.0f0/1200.2.2.4iproute10.1.1.0255.255.255.0f0/1200.2.2.4iproute10.2.1.0255.255.255.0f0/1200.2.2.4iproute10.3.1.0255.255.255.0f0/1200.2.2.4那么如果R2路由down掉，想切换到R3这条链路，必须在R

2、3上进行同样的配置：iproute10.0.1.0255.255.255.0f0/1200.2.2.4iproute10.1.1.0255.255.255.0f0/1200.2.2.4iproute10.2.1.0255.255.255.0f0/1200.2.2.4iproute10.3.1.0255.255.255.0f0/1200.2.2.4如果网络中有成百上千条路由条目，进行这样的配置简直能让人疯掉。-----------------------------------------------------------------------------------

3、-------------------------------------------下面，我们来尝试在R1直接配置到目标网段的静态路由：iproute10.0.1.0255.255.255.0f0/0200.2.2.4iproute10.1.1.0255.255.255.0f0/0200.2.2.4iproute10.2.1.0255.255.255.0f0/0200.2.2.4iproute10.3.1.0255.255.255.0f0/0200.2.2.4此时来查看R1，R2，R3的路由表：R1(config)#doshowiproute-------------

4、-------------------------------------------------------------------------Gatewayoflastresortisnotset1.0.0.0/24issubnetted,1subnetsC1.1.1.0isdirectlyconnected,Loopback0100.0.0.0/24issubnetted,1subnetsC100.1.1.0isdirectlyconnected,FastEthernet0/010.0.0.0/24issubnetted,4subnetsS10.3.1.0[1/0

5、]via200.2.2.4,FastEthernet0/0S10.2.1.0[1/0]via200.2.2.4,FastEthernet0/0S10.1.1.0[1/0]via200.2.2.4,FastEthernet0/0S10.0.1.0[1/0]via200.2.2.4,FastEthernet0/0R2(config)#doshiproute----------------------------------------------------------------------------------------Gatewayoflastresortisno

6、tset100.0.0.0/24issubnetted,1subnetsC100.1.1.0isdirectlyconnected,FastEthernet0/0C200.2.2.0/24isdirectlyconnected,FastEthernet0/110.0.0.0/24issubnetted,4subnetsS10.3.1.0[1/0]via200.2.2.4,FastEthernet0/1S10.2.1.0[1/0]via200.2.2.4,FastEthernet0/1S10.1.1.0[1/0]via200.2.2.4,FastEthernet0/1S1

7、0.0.1.0[1/0]via200.2.2.4,FastEthernet0/1R3(config)#doshowiproute-------------------------------------------------------------------------------------------Gatewayoflastresortisnotset100.0.0.0/24issubnetted,1subnetsC100.1.1.0isdirectlyconnected,FastEthernet0/0C200.2.2.0/24