Router0
Router(config)#router ospf 7 //숫자 아무거나줘도됨
Router(config-router)#network 192.168.70.0 0.0.0.255 area 0
//area 맞춰야한다.
Router(config-router)#network 1.1.70.0 0.0.0.255 area 0
Router1
Router(config)#router ospf 8 //숫자 아무거나줘도됨
Router(config-router)#network 192.168.80.0 0.0.0.255 area 0
//area 맞춰야한다.
Router(config-router)#network 1.1.70.0 0.0.0.255 area 0
area 2개이상 나누기
//핑크선 기준으로 단절된 네트워크 형성
Router0
Router(config-if)#router ospf 7
Router(config-router)#net 192.168.10.0 0.0.0.255 area 0
Router(config-router)#net 1.1.12.0 0.0.0.255 area 0
Router1
Router(config-if)#router ospf 7
Router(config-router)#net 1.1.12.0 0.0.0.255 area 0
Router(config-router)#net 1.1.23.0 0.0.0.255 area 1
Router2
Router(config-if)#router ospf 7
Router(config-router)#net 1.1.34.0 0.0.0.255 area 2
Router(config-router)#net 1.1.23.0 0.0.0.255 area 1
Router3
Router(config-if)#router ospf 7
Router(config-router)#net 1.1.34.0 0.0.0.255 area 2
Router(config-router)#net 192.168.20.0 0.0.0.255 area 2
loop를 통해 단절 네트워크 연결
// Area 0 : 백본 에어리어 Area2 : 단절 에어리어
// Area 1 : 경유 에어리어
1. Router1 lo0 : 2.2.2.2
Router(config)#interface loopback 0
Router(config-if)#ip address 2.2.2.2 255.255.255.0
//reboot해야 설정됨
Router(config-router)#area 1 virutal-link 3.3.3.3
//상대방 루프번호
2. Router2 lo0 : 3.3.3.3
Router(config)#interface loopback 0
Router(config-if)#ip address 3.3.3.3 255.255.255.0
//reboot해야 설정됨
Router(config-router)#area 1 virutal-link 2.2.2.2
//상대방 루프번호
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