CCNA视频:CCNP实验五:修改OSPF各类型路由的管理距离


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一:基本配置

r1(config)#router ospf 1

r1(config-router)#net 1.1.0.0 0.0.255.255 area 1

r1(config-router)#net 12.1.1.1 0.0.0.0 area 0

r1(config-router)#redistribute connected subnets

 

r2(config)#router ospf 1

r2(config-router)#net 12.1.1.2 0.0.0.0 area 0

r2(config-router)#net 2.2.2.2 0.0.0.0 area 0

r2(config-router)#net 23.1.1.1 0.0.0.0 area 2

 

r3(config)#router ospf 1

r3(config-router)#net 0.0.0.0 255.255.255.255 area 2

 

r2#show ip ro os

     1.0.0.0/32 is subnetted, 2 subnets

O IA    1.1.1.1 [110/65] via 12.1.1.1, 00:00:32, Serial1/0

O IA    1.1.2.1 [110/65] via 12.1.1.1, 00:00:32, Serial1/0

     3.0.0.0/32 is subnetted, 2 subnets

O       3.1.2.1 [110/65] via 23.1.1.2, 00:00:32, Serial1/1

O       3.1.1.1 [110/65] via 23.1.1.2, 00:00:32, Serial1/1

     10.0.0.0/24 is subnetted, 1 subnets

O E2    10.1.1.0 [110/20] via 12.1.1.1, 00:00:32, Serial1/0

     30.0.0.0/32 is subnetted, 1 subnets

O       30.1.1.1 [110/65] via 23.1.1.2, 00:00:32, Serial1/1

 

二,分别修改区域内、区域间、外部路由的管理距离

 

r2(config)#router ospf 1

r2(config-router)#distance ospf external 177 inter-area 166 intra-area 155

 

r2#show ip ro os

     1.0.0.0/32 is subnetted, 2 subnets

O IA    1.1.1.1 [166/65] via 12.1.1.1, 00:01:08, Serial1/0

O IA    1.1.2.1 [166/65] via 12.1.1.1, 00:01:08, Serial1/0

     3.0.0.0/32 is subnetted, 2 subnets

O       3.1.2.1 [155/65] via 23.1.1.2, 00:01:08, Serial1/1

O       3.1.1.1 [155/65] via 23.1.1.2, 00:01:08, Serial1/1

     10.0.0.0/24 is subnetted, 1 subnets

O E2    10.1.1.0 [177/20] via 12.1.1.1, 00:01:08, Serial1/0

     30.0.0.0/32 is subnetted, 1 subnets

O       30.1.1.1 [155/65] via 23.1.1.2, 00:01:08, Serial1/1


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