路由圖重分佈的例子

路由圖重分佈OSPF，RIP的例子

如上例圖所示：「RIP與OSPF路由重分佈例子」

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//設置路由重分佈,將rip重分佈到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//設置路由重分佈,將ospf重分佈到rip中

router(config-router)#exit

router(config)#end

以上是配置重分佈是沒有任何要求的例子，下面使用路由圖來進行重分佈的配置：

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//設置路由重分佈,將rip重分佈到ospf中,採用路由圖進行重分佈配置

配置後再查看三臺設備路由表的狀況：

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.

根據以上路由表的分析， switchB 只學到了 switchA 一條 192.168.10.0 的一條路由，而其餘的路由沒有公佈出來，起到了控制的做用。利用路由圖的重分佈的例子，比較靈活，不光能夠匹配列表，還可匹配不一樣的路由協議的參數，進行控制，可是也有不少問題，但願用戶慎重使用，路由圖的使用不光是針對重分佈使用時應用，還能夠基於高層的策略路由的應用，下個例子會講到！謝謝你們支持！請你們多多指教。