多区域OSPF
网络6年前 (2017-09-30)
R1配置
interface Loopback0 ip address 1.1.1.1 255.255.255.0 interface Ethernet0/0 ip address 12.0.0.1 255.255.255.0 interface Ethernet0/1 ip address 41.0.0.1 255.255.255.0 ! router ospf 11 network 1.1.1.0 0.0.0.255 area 0 宣告R1回环接口网段到区域0 network 12.0.0.0 0.0.0.255 area 0 宣告R1和R2直连接口网段到区域0 network 41.0.0.0 0.0.0.255 area 0 宣告R1和R4直连接口网段到区域0
R2配置
interface Loopback0 ip address 2.2.2.2 255.255.255.0 interface Ethernet0/0 ip address 12.0.0.2 255.255.255.0 interface Ethernet0/1 ip address 23.0.0.1 255.255.255.0 ! router ospf 12 network 2.2.2.0 0.0.0.255 area 0 宣告R2回环接口网段到区域0 network 12.0.0.0 0.0.0.255 area 0 宣告R2和R1直连接口网段到区域0 network 23.0.0.0 0.0.0.255 area 23 宣告R2和R3直连接口网段到区域23
R3配置
interface Loopback0 ip address 3.3.3.3 255.255.255.0 interface Ethernet0/1 ip address 23.0.0.2 255.255.255.0 ! router ospf 13 network 3.3.3.0 0.0.0.255 area 23 宣告R3回环接口网段到区域23 network 23.0.0.0 0.0.0.255 area 23 宣告R3和R2直连接口网段到区域23
R4配置
interface Loopback0 ip address 4.4.4.4 255.255.255.0 interface Ethernet0/0 ip address 45.0.0.1 255.255.255.0 interface Ethernet0/1 ip address 41.0.0.2 255.255.255.0 ! router ospf 14 network 4.4.4.0 0.0.0.255 area 0 宣告R4回环接口网段到区域0 network 41.0.0.0 0.0.0.255 area 0 宣告R4和R1直连接口网段到区域0 network 45.0.0.0 0.0.0.255 area 45 宣告R4和R5直连接口网段到区域45
R5配置
interface Loopback0 ip address 5.5.5.5 255.255.255.0 interface Ethernet0/0 ip address 45.0.0.2 255.255.255.0 ! router ospf 15 network 5.5.5.0 0.0.0.255 area 45 宣告R5回环接口网段到区域45 network 45.0.0.0 0.0.0.255 area 45 宣告R5和R4直连接口网段到区域45
查看路由表
R1# SH IP RO C 1.1.1.0/24 is directly connected, Loopback0 L 1.1.1.1/32 is directly connected, Loopback0 2.0.0.0/32 is subnetted, 1 subnets O 2.2.2.2 [110/11] via 12.0.0.2, 00:28:57, Ethernet0/0 3.0.0.0/32 is subnetted, 1 subnets O IA 3.3.3.3 [110/21] via 12.0.0.2, 00:25:11, Ethernet0/0
全网互通,并可以看到O IA多区域域间路由信息
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