路由图重分布的例子

路由图重分布OSPF，RIP的例子

如上例图所示：“RIP与OSPF路由重分布例子”

switchA(config)#router rip

switchA(config-router)#network 192.168.10.0

switchA(config-router)#network 192.168.20.0

switchA(config-router)#network 192.168.1.0

switchA(config-router)#version 2

switchA(config-router)#no auto-summary

switchA(config-router)#exit

switchA(config)#end

router(config)#router rip

router(config-router)#network 192.168.1.0

router(config-router)#network 192.168.2.0

router(config-router)#redistribute ospf metric 3//设置路由重分布,将rip重分布到ospf中

router(config-router)#version 2

router(config-router)#no auto-summary

router(config-router)#exit

router(config)#router ospf

router(config-router)#network 192.168.1.0 0.0.0 .255 area 0

router(config-router)#network 192.168.2.0 0.0.0 .255 area 0

router(config-router)#redistriblute rip subnets//设置路由重分布,将ospf重分布到rip中

router(config-router)#exit

router(config)#end

以上是配置重分布是没有任何要求的例子，下面使用路由图来进行重分布的配置：

Router(config)#access-list 10 permit 192.168.10.0 0.0.0 .255

Router(config)#route-map rmap permit 10

Router(config-route-map)#match ip address 10

Router(config-route-map)#exit

Router(config)#router rip

Router(config-router)#redistribute ospf  route-map rmap metric 3//设置路由重分布,将rip重分布到ospf中,采用路由图进行重分布配置

配置后再查看三台设备路由表的状况：

Router:

Router#show ip route

 

Codes:  C - connected, S - static,  R - RIP B - BGP

        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, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area

 

        * - candidate default

 

Gateway of last resort is no set

C    192.168.1.0/24 is directly connected, FastEthernet 0/0

C    192.168.1.2/32 is local host.

C    192.168.2.0/24 is directly connected, FastEthernet 0/1

C    192.168.2.2/32 is local host.

R    192.168.10.0/24 [120/1] via 192.168.1.1, 00:00:07, FastEthernet 0/0

R    192.168.20.0/24 [120/1] via 192.168.1.1, 00:00:07, FastEthernet 0/0

O    192.168.30.0/24 [110/2] via 192.168.2.1, 00:19:36, FastEthernet 0/1

O    192.168.40.0/24 [110/2] via 192.168.2.1, 00:20:45, FastEthernet 0/1

 

switchA:

switchA#show ip route

 

Codes:  C - connected, S - static,  R - RIP B - BGP

        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, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area

 

        * - candidate default

 

Gateway of last resort is no set

C    192.168.1.0/24 is directly connected, FastEthernet 0/1

C    192.168.1.1/32 is local host.

C    192.168.10.0/24 is directly connected, VLAN 10

C    192.168.10.1/32 is local host.

C    192.168.20.0/24 is directly connected, VLAN 20

C    192.168.20.1/32 is local host.

R    192.168.30.0/24 [120/3] via 192.168.1.2, 00:00:21, FastEthernet 0/1

R    192.168.40.0/24 [120/3] via 192.168.1.2, 00:00:21, FastEthernet 0/1

R    192.168.2.0/24 [120/3] via 192.168.1.2, 00:00:21, FastEthernet 0/1

 

switchB:

switchB#show ip route

 

Codes:  C - connected, S - static,  R - RIP B - BGP

        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, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area

 

        * - candidate default

 

Gateway of last resort is no set

C    192.168.2.0/24 is directly connected, FastEthernet 0/1

C    192.168.2.1/32 is local host.

O E2 192.168.10.0/24 [110/20] via 192.168.2.2, 00:22:48, FastEthernet 0/1

C    192.168.30.0/24 is directly connected, VLAN 10

C    192.168.30.1/32 is local host.

C    192.168.40.0/24 is directly connected, VLAN 20

C    192.168.40.1/32 is local host.

根据以上路由表的分析， switchB 只学到了 switchA 一条 192.168.10.0 的一条路由，而其余的路由没有公布出来，起到了控制的做用。利用路由图的重分布的例子，比较灵活，不光能够匹配列表，还可匹配不一样的路由协议的参数，进行控制，可是也有不少问题，但愿用户慎重使用，路由图的使用不光是针对重分布使用时应用，还能够基于高层的策略路由的应用，下个例子会讲到！谢谢你们支持！请你们多多指教。