2014. 11. 17. OSPF

 

R2 (D)

Daejeon#sh ip ospf neighbor Neighbor ID     Pri   State           Dead Time   Address         Interface 10.1.1.1          0   FULL/  -        00:00:31    10.1.12.1       Serial0/0/0 10.1.3.1          0   FULL/  -        00:00:31    10.1.12.6       Serial0/0/1 10.1.4.1          0   FULL/  -        00:00:31    10.1.12.10      Serial0/1/0

- Neighbor ID : 라우터ID

R2 (D)

Daejeon#sh ip ospf interface s0/0/0 Serial0/0/0 is up, line protocol is up   Internet address is 10.1.12.2/30, Area 0   Process ID 1, Router ID 10.1.2.1, Network Type POINT-TO-POINT, Cost: 64   Transmit Delay is 1 sec, State POINT-TO-POINT, Priority 0   No designated router on this network   No backup designated router on this network   Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5     Hello due in 00:00:06   Index 2/2, flood queue length 0   Next 0x0(0)/0x0(0)   Last flood scan length is 1, maximum is 1   Last flood scan time is 0 msec, maximum is 0 msec   Neighbor Count is 1 , Adjacent neighbor count is 1     Adjacent with neighbor 10.1.1.1   Suppress hello for 0 neighbor(s)

 

 

R1 (S)

! interface Loopback0  ip address 10.1.1.1 255.255.255.0 ! interface Serial0/0/0  ip address 10.1.12.1 255.255.255.252 ! router ospf 1  router-id 10.1.1.1  log-adjacency-changes  network 10.1.1.0 0.0.0.255 area 1  network 10.1.12.0 0.0.0.3 area 0 !

! Seoul#sh ip route       10.0.0.0/8 is variably subnetted, 9 subnets, 3 masks C       10.1.1.0/24 is directly connected, Loopback0 O       10.1.2.1/32 [110/65] via 10.1.12.2, 00:00:46, Serial0/0/0 O IA    10.1.3.1/32 [110/129] via 10.1.12.2, 00:00:46, Serial0/0/0 O IA    10.1.4.1/32 [110/129] via 10.1.12.2, 00:00:46, Serial0/0/0 O IA    10.1.5.1/32 [110/130] via 10.1.12.2, 00:00:46, Serial0/0/0 C       10.1.12.0/30 is directly connected, Serial0/0/0 O       10.1.12.4/30 [110/128] via 10.1.12.2, 00:00:46, Serial0/0/0 O       10.1.12.8/30 [110/128] via 10.1.12.2, 00:00:46, Serial0/0/0 O IA    10.1.12.12/30 [110/129] via 10.1.12.2, 00:00:46, Serial0/0/0 !

O : OSPF  IA : inter area의 약자로 Area 들끼리 주고 받은 경로라는 뜻이다

 

R2 (D)

! interface Loopback0  ip address 10.1.2.1 255.255.255.0 ! interface Serial0/0/0  ip address 10.1.12.2 255.255.255.252  clock rate 64000 ! interface Serial0/0/1  ip address 10.1.12.5 255.255.255.252  clock rate 64000 ! interface Serial0/1/0  ip address 10.1.12.9 255.255.255.252  clock rate 64000 ! router ospf 1  router-id 10.1.2.1  log-adjacency-changes  network 10.1.2.0 0.0.0.255 area 0  network 10.1.12.0 0.0.0.3 area 0  network 10.1.12.4 0.0.0.3 area 0  network 10.1.12.8 0.0.0.3 area 0 !

! Daejeon#sh ip route       10.0.0.0/8 is variably subnetted, 9 subnets, 3 masks O IA    10.1.1.1/32 [110/65] via 10.1.12.1, 00:34:23, Serial0/0/0 C       10.1.2.0/24 is directly connected, Loopback0 O IA    10.1.3.1/32 [110/65] via 10.1.12.6, 00:34:23, Serial0/0/1 O IA    10.1.4.1/32 [110/65] via 10.1.12.10, 00:34:23, Serial0/1/0 O IA    10.1.5.1/32 [110/66] via 10.1.12.10, 00:34:23, Serial0/1/0 C       10.1.12.0/30 is directly connected, Serial0/0/0 C       10.1.12.4/30 is directly connected, Serial0/0/1 C       10.1.12.8/30 is directly connected, Serial0/1/0 O IA    10.1.12.12/30 [110/65] via 10.1.12.10, 00:34:23, Serial0/1/0 !

 

R3 (G)

! interface Loopback0  ip address 10.1.3.1 255.255.255.0 ! interface Serial0/0/0  ip address 10.1.12.6 255.255.255.252 ! router ospf 1  router-id 10.1.3.1  log-adjacency-changes  network 10.1.3.0 0.0.0.255 area 2  network 10.1.12.4 0.0.0.3 area 0 !

! Gwangju#sh ip route      10.0.0.0/8 is variably subnetted, 9 subnets, 3 masks O IA    10.1.1.1/32 [110/129] via 10.1.12.5, 00:35:37, Serial0/0/0 O       10.1.2.1/32 [110/65] via 10.1.12.5, 00:35:37, Serial0/0/0 C       10.1.3.0/24 is directly connected, Loopback0 O IA    10.1.4.1/32 [110/129] via 10.1.12.5, 00:35:37, Serial0/0/0 O IA    10.1.5.1/32 [110/130] via 10.1.12.5, 00:35:37, Serial0/0/0 O       10.1.12.0/30 [110/128] via 10.1.12.5, 00:35:37, Serial0/0/0 C       10.1.12.4/30 is directly connected, Serial0/0/0 O       10.1.12.8/30 [110/128] via 10.1.12.5, 00:35:37, Serial0/0/0 O IA    10.1.12.12/30 [110/129] via 10.1.12.5, 00:35:37, Serial0/0/0 !

 

R4 (B)

! interface Loopback0  ip address 10.1.4.1 255.255.255.0 ! interface FastEthernet0/0  ip address 10.1.12.13 255.255.255.252  duplex auto  speed auto ! interface Serial0/0/0  ip address 10.1.12.10 255.255.255.252 ! router ospf 1  log-adjacency-changes  network 10.1.4.0 0.0.0.255 area 3  network 10.1.12.12 0.0.0.3 area 3  network 10.1.12.8 0.0.0.3 area 0 !

! Busan#sh ip route       10.0.0.0/8 is variably subnetted, 9 subnets, 3 masks O IA    10.1.1.1/32 [110/129] via 10.1.12.9, 00:37:14, Serial0/0/0 O       10.1.2.1/32 [110/65] via 10.1.12.9, 00:37:14, Serial0/0/0 O IA    10.1.3.1/32 [110/129] via 10.1.12.9, 00:37:14, Serial0/0/0 C       10.1.4.0/24 is directly connected, Loopback0 O       10.1.5.1/32 [110/2] via 10.1.12.14, 00:39:56, FastEthernet0/0 O       10.1.12.0/30 [110/128] via 10.1.12.9, 00:37:14, Serial0/0/0 O       10.1.12.4/30 [110/128] via 10.1.12.9, 00:37:14, Serial0/0/0 C       10.1.12.8/30 is directly connected, Serial0/0/0 C       10.1.12.12/30 is directly connected, FastEthernet0/0 !

 

R5 (J)

! interface Loopback0  ip address 10.1.5.1 255.255.255.0 ! interface FastEthernet0/0  ip address 10.1.12.14 255.255.255.252  duplex auto  speed auto ! router ospf 1  log-adjacency-changes  network 10.1.5.0 0.0.0.255 area 3  network 10.1.12.12 0.0.0.3 area 3 !

! Jeju# sh ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP        D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area        N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2        E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP        i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area        * - candidate default, U - per-user static route, o - ODR        P - periodic downloaded static route Gateway of last resort is not set      10.0.0.0/8 is variably subnetted, 9 subnets, 3 masks O IA    10.1.1.1/32 [110/130] via 10.1.12.13, 00:38:11, FastEthernet0/0 O IA    10.1.2.1/32 [110/66] via 10.1.12.13, 00:38:11, FastEthernet0/0 O IA    10.1.3.1/32 [110/130] via 10.1.12.13, 00:38:11, FastEthernet0/0 O       10.1.4.1/32 [110/2] via 10.1.12.13, 00:40:55, FastEthernet0/0 C       10.1.5.0/24 is directly connected, Loopback0 O IA    10.1.12.0/30 [110/129] via 10.1.12.13, 00:38:11, FastEthernet0/0 O IA    10.1.12.4/30 [110/129] via 10.1.12.13, 00:38:11, FastEthernet0/0 O IA    10.1.12.8/30 [110/65] via 10.1.12.13, 00:40:55, FastEthernet0/0 C       10.1.12.12/30 is directly connected, FastEthernet0/0 !