hrrp

vmnet2

vmnet3

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R1, R2, R3, R4 설정

R1#conf t R1(config)#int fa0/0 R1(config-if)#ip address 12.0.0.1 255.255.255.0 R1(config-if)#no shutdown R1(config-if)#exit R1(config)#int fa0/1 R1(config-if)#ip address 13.0.0.1 255.255.255.0 R1(config-if)#no sh R1(config-if)#exit R1(config)#int fa1/0 R1(config-if)#ip address 14.0.0.1 255.255.255.0 R1(config-if)#no sh R1(config-if)#exit R1(config)#int fa2/0 R1(config-if)#ip address 192.168.30.42 255.255.255.0 R1(config-if)#no sh R1(config-if)#exit R1(config)#end R1#wr me Building configuration... [OK]

R2#conf t R2(config)#int fa0/0 R2(config-if)#ip address 10.10.10.251 255.255.255.0 R2(config-if)#no shutdown R2(config-if)#exit R2(config)#int fa0/1 R2(config-if)#ip address 12.0.0.2 255.255.255.0 R2(config-if)#no shutdown R2(config-if)#end R2#wr me Building configuration... [OK]

R3#conf t R3(config)#int fa0/0 R3(config-if)#ip address 10.10.10.252 255.255.255.0 R3(config-if)#no shutdown R3(config-if)#exit R3(config)#int fa0/1 R3(config-if)#ip address 13.0.0.2 255.255.255.0 R3(config-if)#no shutdown R3(config-if)#end R3#wr me Building configuration... [OK]

R4#conf t R4(config)#int fa0/0 R4(config-if)#ip address 10.10.10.253 255.255.255.0 R4(config-if)#no shutdown R4(config-if)#exit R4(config)#int fa0/1 R4(config-if)#ip address 14.0.0.2 255.255.255.0 R4(config-if)#no shutdown R4(config)#end R4#wr me Building configuration... [OK]

R1라우터에서 12.0.0.2에만 연결 실패했는데 이유를 찾고있습니당,,또르륵

R2라우터는 다 잘 연결되었음을 확인

R3도 성공,,

R4도 성공!!

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R1#conf t R1(config)#router ospf 1 R1(config-router)#network 12.0.0.1 0.0.0.255 area 0 R1(config-router)#network 13.0.0.1 0.0.0.255 area 0 R1(config-router)#network 14.0.0.1 0.0.0.255 area 0 R1(config-router)#passive-interface fastEthernet 2/0 R1(config-router)#end

R2#conf t R2(config)#router ospf 1 R2(config-router)#network 12.0.0.2 0.0.0.255 area 0 R2(config-router)#network 10.10.10.251 0.0.0.255 area 0 R2(config-router)#passive-interface fa0/0 R2(config-router)#end

R3#conf t R3(config)#router ospf 1 R3(config-router)#network 13.0.0.2 0.0.0.255 area 0 R3(config-router)#network 10.10.10.252 0.0.0.255 area 0 R3(config-router)#passive-interface fa0/0 R3(config-router)#end

R4#conf t R4(config)#router ospf 1 R4(config-router)#network 14.0.0.2 0.0.0.255 area 0 R4(config-router)#network 10.10.10.253 0.0.0.255 area 0 R4(config-router)#passive-interface fa0/0 R4(config-router)#end

R2는 왜 말썽이지,,

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R1#conf t R1(config)#ip route 0.0.0.0 0.0.0.0 192.168.30.254 R1(config)#access-list 1 per R1(config)#access-list 1 permit any R1(config)#ip nat inside source list 1 interface fa2/0 R1(config)#int fa2/0 R1(config-if)#ip nat outside R1(config-if)#exit R1(config)#int range fa0/0 - 1 , fa1/0 R1(config-if-range)#ip nat inside R1(config-if-range)#exit R1(config)#router ospf 1 R1(config-router)#default-information originate R1(config-router)#end R1#ping 8.8.8.8 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 28/47/72 ms

R2#conf t R2(config)#int fa0/0          R2(config-if)#standby 1 ip 10.10.10.254 R2(config-if)#standby 1 timers 1 3 R2(config-if)#standby 1 track R2(config-if)#standby 1 priority 120 R2(config-if)#exit R2(config)#track 1 interface fastEthernet 0/1 line-protocol R2(config-track)#exit R2(config)#int fa0/0 R2(config-if)#standby 1 track 1 decrement 30 R2(config-if)#standby 1 preempt delay minimum 3 R2(config-if)#standby 1 authentication md5 key-string 0 test R2(config-if)#end R2#show standby bri                      P indicates configured to preempt.                      | Interface   Grp  Pri P State   Active          Standby         Virtual IP Fa0/0       1    120 P Active  local           unknown         10.10.10.254

R3#conf t R3(config)#int fa0/0 R3(config-if)#standby 1 ip 10.10.10.254 R3(config-if)#standby 1 timers 1 3 R3(config-if)#standby 1 priority 110 R3(config-if)#standby 1 preempt delay minimum 3 R3(config-if)#exit R3(config)#track 1 interface fa0/1 line-protocol R3(config-track)#exit R3(config)#int fa0/0 R3(config-if)#standby 1 track 1 decrement 30 R3(config-if)#standby 1 authentication md5 key-string 0 test R3(config-if)#end R3#show standby bri                      P indicates configured to preempt.                      | Interface   Grp  Pri P State   Active          Standby         Virtual IP Fa0/0       1    110 P Standby 10.10.10.251    local           10.10.10.254

R4#conf t R4(config)#track 1 int fa0/1 line-protocol R4(config-track)#exit R4(config)#int fa0/0 R4(config-if)#standby ip 10.10.10.254 % Address 10.10.10.254 in group 1 R4(config-if)#standby 1 timers 1 3 R4(config-if)#standby priority 100 R4(config-if)#standby 1 preempt delay minimum 30 R4(config-if)#standby 1 track 1 decrement 30 R4(config-if)#standby 1 authentication md5 key-string 0 test R4(config-if)#end R4#show standby bri                      P indicates configured to preempt.                      | Interface   Grp  Pri P State   Active          Standby         Virtual IP Fa0/0       1    100 P Listen  10.10.10.251    10.10.10.252    10.10.10.254