配置各個路由器接口ip和Loopback接口ip，步驟略
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配置OSPF
R1:
(config)#router ospf 1
(config-router)#router-id 1.1.1.1
(config-router)#network 1.1.1.1 0.0.0.0 area 0
(config-router)#network 192.168.0.0 0.0.0.255 area 0
(config-router)#network 192.168.1.0 0.0.0.255 area 0
(config-router)#network 10.0.0.0 0.0.0.3 area 0
(config-router)#network 10.0.0.4 0.0.0.3 area 1
(config-router)#area 1 range 192.168.0.0 255.255.254.0 區域間彙總
(config-router)#area 1 nssa
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R2:
(config)#router ospf 1
(config-router)#router-id 2.2.2.2
(config-router)#network 2.2.2.2 0.0.0.0 area 0
(config-router)#network 192.168.2.0 0.0.0.255 area 0
(config-router)#network 10.0.0.0 0.0.0.3 area 0
(config-router)#network 10.0.0.8 0.0.0.3 area 2
(config-router)#area 2 virtual-link 3.3.3.3 虛鏈路配置
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R3:
(config)#router ospf 1
(config-router)#router-id 3.3.3.3
(config-router)#network 3.3.3.3 0.0.0.0 area 2
(config-router)#network 192.168.3.0 0.0.0.255 area 2
(config-router)#network 10.0.0.8 0.0.0.3 area 2
(config-router)#network 10.0.0.12 0.0.0.3 area 3
(config-router)#area 2 virtual-link 2.2.2.2 虛鏈路配置
(config-router)#area 3 stub
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R4:
(config)#router ospf 1
(config-router)#router-id 4.4.4.4
(config-router)#network 4.4.4.4 0.0.0.0 area 3
(config-router)#network 192.168.4.0 0.0.0.255 area 3
(config-router)#network 10.0.0.12 0.0.0.3 area 3
(config-router)#area 3 stub
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R5:
(config)#ip route 192.168.8.0 255.255.252.0 10.0.0.18 彙總後的靜態路由
(config)#router ospf 1
(config-router)#router-id 5.5.5.5
(config-router)#network 5.5.5.5 0.0.0.0 area 1
(config-router)#network 192.168.5.0 0.0.0.255 area 1
(config-router)#network 10.0.0.4 0.0.0.3 area 1
(config-router)#summary-address 192.168.8.0 255.255.252.0 外部路由彙總
(config-router)#redistribute static subnets 重分發靜態路由
(config-router)#redistribute connected subnets 重分發直連路由
(config-router)#area 1 nssa
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R6:
(config)#ip route 0.0.0.0 0.0.0.0 10.0.0.17