Configure Simple OSPF Routing Protocol on Cisco (Point To Point Topology)
11 September 2009 
Assalamu ‘alaikum….
Setelah kemarin hanya melakukan posting ‘informasi’ yang diperoleh dari internet. Sekarang saya akanback on the track. Yup, saatnya melakukan konfigurasi routing OSPF di router Cisco! Ya..eee :D. Disini, kita akan menggunakan 2 buah router aje.
Here is the network diagram…
Okeyh, let’s see how both router has configured, pretty simple.
___________________________________________________________________________________________________
Setup Router Configuration ___________________________________________________________________________________________________
Router Dableg
interface Loopback0
description “AREA 1”
ip address 1.1.1.1 255.255.255.0
!
interface FastEthernet0/0
description “Link For Remote”
ip address 202.47.66.253 255.255.255.248
duplex auto
speed auto
!
interface Serial0/0
description “Link To Gebleg”
ip address 100.100.100.1 255.255.255.0
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/1
no ip address
shutdown
!
router ospf 10
log-adjacency-changes
network 1.1.1.0 0.0.0.255 area 1
network 100.100.100.0 0.0.0.255 area 0
Router Gebleg
interface Loopback0
description “Area 2”
ip address 2.2.2.2 255.255.255.0
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0
description “Link To Dableg”
ip address 100.100.100.2 255.255.255.0
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/1
no ip address
shutdown
!
router ospf 20
log-adjacency-changes
network 2.2.2.0 0.0.0.255 area 2
network 100.100.100.0 0.0.0.255 area 0
_________________________________________________________________________________________________
Verify ip route, ip ospf and connection status _________________________________________________________________________________________________
Dableg#sh ip route
Codes: C – connected, S – static, 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
i – IS-IS, su – IS-IS summary, 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 202.47.66.249 to network 0.0.0.0
202.47.66.0/29 is subnetted, 1 subnets
C 202.47.66.248 is directly connected, FastEthernet0/0
1.0.0.0/24 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Loopback0
2.0.0.0/32 is subnetted, 1 subnets
O IA 2.2.2.2 [110/65] via 100.100.100.2, 00:00:06, Serial0/0
100.0.0.0/24 is subnetted, 1 subnets
C 100.100.100.0 is directly connected, Serial0/0
S* 0.0.0.0/0 [1/0] via 202.47.66.249
Dableg#sh ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
2.2.2.2 0 FULL/ – 00:00:31 100.100.100.2 Serial0/0
Dableg#sh ip ospf interface lo0
Loopback0 is up, line protocol is up
Internet Address 1.1.1.1/24, Area 1
Process ID 10, Router ID 1.1.1.1, Network Type LOOPBACK, Cost: 1
Loopback interface is treated as a stub Host
Dableg#sh ip ospf interface s0/0
Serial0/0 is up, line protocol is up
Internet Address 100.100.100.1/24, Area 0
Process ID 10, Router ID 1.1.1.1, Network Type POINT_TO_POINT, Cost: 64
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:04
Index 1/2, 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 2.2.2.2
Suppress hello for 0 neighbor(s)
Dableg#ping 2.2.2.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/8 ms ___________________________________________________________________________________________________________________________________
Gebleg#sh ip route
Codes: C – connected, S – static, 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
i – IS-IS, su – IS-IS summary, 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
1.0.0.0/32 is subnetted, 1 subnets
O IA 1.1.1.1 [110/65] via 100.100.100.1, 00:01:15, Serial0/0
2.0.0.0/24 is subnetted, 1 subnets
C 2.2.2.0 is directly connected, Loopback0
100.0.0.0/24 is subnetted, 1 subnets
C 100.100.100.0 is directly connected, Serial0/0
Gebleg#sh ip osp
Gebleg#sh ip ospf nei
Gebleg#sh ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
1.1.1.1 0 FULL/ – 00:00:30 100.100.100.1 Serial0/0
Gebleg#sh ip ospf interface lo0
Loopback0 is up, line protocol is up
Internet Address 2.2.2.2/24, Area 2
Process ID 20, Router ID 2.2.2.2, Network Type LOOPBACK, Cost: 1
Loopback interface is treated as a stub Host
Gebleg#sh ip ospf interface s0/0
Serial0/0 is up, line protocol is up
Internet Address 100.100.100.2/24, Area 0
Process ID 20, Router ID 2.2.2.2, Network Type POINT_TO_POINT, Cost: 64
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:03
Index 1/2, 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 1.1.1.1
Suppress hello for 0 neighbor(s)
Gebleg#ping 1.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
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