R1
172.16.1.0/29
R2
172.16.2.0/28
R3
172.16.3.0 /27
R1 -- R2 구간
1.1.12.0/30
R2 -- R3 구간
1.1.12.4/30
R1 설정
Router#configure t
Router(config)#line console 0
Router(config-line)#exec-tim
Router(config-line)#exec-timeout 0 0
Router(config-line)#logging synchronous
Router(config-line)#exit
Router(config)#no ip domain-lookup
Router(config)#interface s0/0
Router(config-if)#no shutdown
Router(config-if)#ip address 1.1.12.10 255.255.255.252
Router(config-if)#clock rate 64000
Router(config-if)#exit
Router(config)#interface fastEthernet 0/0
Router(config-if)#no shutdown
Router(config-if)#ip address 172.16.1.1 255.255.255.248
Router(config-if)#exit
Router(config)#exit
Router#configure t
Router(config)#interface loopback 0
Router(config-if)#ip address 1.1.1.3 255.255.255.0
Router(config-if)#exit
Router(config)#router ospf 4
Router(config-router)#network 1.1.1.3 0.0.0.0 area 0
Router(config-router)#network 1.1.12.10 0.0.0.0 area 0
Router(config-router)#network 172.16.1.1 0.0.0.0 area 0
Router(config-router)#exit
Router(config)#exit
Router#show ip protocols
Routing Protocol is "ospf 4"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Router ID 1.1.1.3
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
1.1.1.3 0.0.0.0 area 0
1.1.12.10 0.0.0.0 area 0
172.16.1.1 0.0.0.0 area 0
Routing Information Sources:
Gateway Distance Last Update
1.1.1.3 110 00:00:09
Distance: (default is 110)
Router#conf t
Router(config)#hostname R1
R1(config)#exit
R1#copy run start
Destination filename [startup-config]?
Building configuration...
R2 설정
Router(config)#line console 0
Router(config-line)#exec-timeout 0 0
Router(config-line)#logging synchronous
Router(config-line)#exit
Router(config)#no ip domain-lookup
Router(config)#exit
Router#configure t
Router(config)#interface fastEthernet 0/0
Router(config-if)#no shutdown
Router(config-if)#ip address 172.16.2.1 255.255.255.240
Router(config)#interface serial 0/1
Router(config-if)#no shutdown
Router(config-if)#ip address 1.1.12.5 255.255.255.252
Router(config-if)#clock rate 64000
Router(config-if)#exit
Router(config)#interface s0/0
Router(config-if)#no shutdown
Router(config-if)#ip address 1.1.12.9 255.255.255.252
Router(config-if)#clock rate 64000
Router(config-if)#exit
Router(config)#interface loopback 0
Router(config-if)#ip address 2.2.2.3 255.255.255.0
Router(config)#router ospf 4
Router(config-router)#network 2.2.2.3 0.0.0.0 area 0
Router(config-router)#network 1.1.12.9 0.0.0.0 area 0
Router(config-router)#network 172.16.2.1 0.0.0.0 area 0
Router(config-router)#network 1.1.12.5 0.0.0.0 area 0
Router(config-router)#exit
Router(config)#exit
Router#conf t
Router#copy run start
Destination filename [startup-config]?
Building configuration...
Router#conf t
Router(config)#hostname R2
R2(config)#exit
R2#show ip protocols
Routing Protocol is "ospf 4"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Router ID 2.2.2.3
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
2.2.2.3 0.0.0.0 area 0
1.1.12.9 0.0.0.0 area 0
172.16.2.1 0.0.0.0 area 0
1.1.12.5 0.0.0.0 area 0
Routing Information Sources:
Gateway Distance Last Update
1.1.1.3 110 00:01:28
2.2.2.3 110 00:00:53
3.3.3.3 110 00:00:53
Distance: (default is 110)
R2#ping 172.16.1.1
R3 설정
R3(config-if)#ip addre
R3(config-if)#ip address 3.3.3.3 255.255.255.0
R3(config)#interface fa 0/0
R3(config-if)#no shutdown
R3(config)#interface loopback 0
R3(config-if)#ip address 3.3.3.3 255.255.255.0
R3(config)#interface s 0/0
R3(config-if)#no sh
R3(config-if)#no shutdown
R3(config-if)#clock rate 64000
R3(config-if)#ip ad
R3(config-if)#ip address 1.1.12.6 255.255.255.252
R3(config-if)#exit
R3#show ip interface brief
R3(config)#router ospf 4
R3(config-router)#network 3.3.3.3 0.0.0.0 area 0
IP 광고
R3(config-router)#network 3.3.3.0 0.0.0.255 area 0
netID : wildcat mask
R3(config-router)#network 172.16.3.0 0.0.0.31 area 0
R3(config-router)#network 1.1.12.6 0.0.0.0 area 0
R3(config-router)#network 1.1.12.4 0.0.0.3 area 0
R3#show ip protocols
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백업 설정및은 차후 설명.
