networking:cisco:eigrp

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Cisco : Dynamic Routing - EIGRP [U]

Open Shortest Path First (OSPF) adalah protokol gateway interior (IGP) yang digunakan secara luas untuk melakukan routing paket-paket IP dalam satu sistem otonom (AS) dalam jaringan IP. OSPF dirancang untuk menghitung jalur terpendek secara efisien untuk paket data yang bergerak dari sumber ke tujuan.

Syntax

Konfigurasi OSPF

Command Description
R1(config)#router ospf [PID] Process ID [PID] (1 - 65535)
R1(config-router)#router-id [a.b.c.d] menual mengatur router ID, dengan IPv4 format.
R1(config-router)#network [network-address] [wildcard-mask] area [area id]Untuk semua network yang terhubung langsung. Area ID 0 - 4294967295

area id dapat ditulis dengan format ip adress ProTip: Begaimana cara mengetahui network yang terhubung langsung dengan router?
apat diketahu dengan R1(config)#do show ip route con command.

OSPF verification

Command Description
R1#show ip protocols PID, router ID, advertised networks, neighbors dan administrative distance.
R1#show ip route
R1#show ip ospf neighbor lis OSPF neighbor
R1#show ip ospf identify the PID, router ID, area information, dan waktu
R1#show ip ospf interface brief
R1#show ip ospf interface list ospf interfaces
R1#show ip ospf interface [int-id]Lebih detail

Contoh: 

router ospf 1
 network X.X.X.0 0.0.0.255 area 0
 network Y.Y.Y.0 0.0.0.3 area 0

Topologi

Konfigurasi IP

Konfigurasi IP

  • R1 : Konfigurasi IP
R1(config)#interface FastEthernet0/0
R1(config-if)#ip address 192.168.1.1 255.255.255.0
R1(config-if)#no shutdown
R1(config-if)#exit
R1(config)#interface Serial0/0/0
R1(config-if)#ip address 10.0.1.1 255.255.255.252
R1(config-if)#no shutdown
R1(config-if)#exit
R1(config)#interface Serial0/1/0
R1(config-if)#ip address 10.0.0.1 255.255.255.252
R1(config-if)#no shutdown
R1(config-if)#exit
  • R2 : Konfigurasi IP
R2(config)#interface FastEthernet0/0
R2(config-if)#ip address 192.168.2.1 255.255.255.0
R2(config-if)#no shutdown
R2(config-if)#exit
R2(config)#interface Serial0/0/0
R2(config-if)#ip address 10.0.2.1 255.255.255.252
R2(config-if)#no shutdown
R2(config-if)#exit
R2(config)#interface Serial0/1/0
R2(config-if)#ip address 10.0.0.2 255.255.255.252
R2(config-if)#no shutdown
  • R3 : Konfigurasi IP
R3(config)#interface FastEthernet0/0
R3(config-if)#ip address 192.168.3.1 255.255.255.0
R3(config-if)#no shutdown
R3(config-if)#exit
R3(config)#interface Serial0/0/0
R3(config-if)#ip address 10.0.2.2 255.255.255.252
R3(config-if)#no shutdown
R3(config-if)#exit
R3(config)#interface Serial0/1/0
R3(config-if)#ip address 10.0.1.2 255.255.255.252
R3(config-if)#no shutdown
  • PCs : Konfigurasi IP

PC IP Address Subnet Mask
PC1 192.168.1.2 255.255.255.0 192.168.1.1
PC2 192.168.2.2 255.255.255.0 192.168.2.1
PC3 192.168.3.2 255.255.255.0 192.168.3.1

Hubungkan semua segment jaringan hanya dengan ospf dan hanya menggunakan single area

Konfigurasi

  • R1 : Tambah static route ke 192.168.13.0/24,192.168.2.0/24
R1(config)#router ospf 1
R1(config-router)#network 192.168.1.0 0.0.0.255 area 0
R1(config-router)#network 10.0.0.0 0.0.0.3 area 0
R1(config-router)#network 10.0.1.0 0.0.0.3 area 0
  • R1 : Tambah static route ke 192.168.1.0/24,192.168.2.0/24
R2(config)#router ospf 1
R2(config-router)#network 192.168.2.0 0.0.0.255 area 0
R2(config-router)#network 10.0.0.0 0.0.0.3 area 0
R2(config-router)#network 10.0.2.0 0.0.0.3 area 0
  • R3 : Tambah static route ke 192.168.1.0/24,192.168.12.0/24
R3(config)#router ospf 1
R3(config-router)#network 192.168.3.0 0.0.0.255 area 0
R3(config-router)#network 10.0.1.0 0.0.0.3 area 0
R3(config-router)#network 10.0.2.0 0.0.0.3 area 0

Testing

Testing

* Route tables R1 

R1#show 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

     10.0.0.0/30 is subnetted, 3 subnets
C       10.0.0.0 is directly connected, Serial0/1/0
C       10.0.1.0 is directly connected, Serial0/0/0
O       10.0.2.0 [110/128] via 10.0.0.2, 00:02:20, Serial0/1/0
                 [110/128] via 10.0.1.2, 00:02:20, Serial0/0/0
C    192.168.1.0/24 is directly connected, FastEthernet0/0
O    192.168.2.0/24 [110/65] via 10.0.0.2, 00:04:16, Serial0/1/0
O    192.168.3.0/24 [110/65] via 10.0.1.2, 00:02:30, Serial0/0/0

* Route tables R2 

R2#show 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

     10.0.0.0/30 is subnetted, 3 subnets
C       10.0.0.0 is directly connected, Serial0/1/0
O       10.0.1.0 [110/128] via 10.0.0.1, 00:03:12, Serial0/1/0
                 [110/128] via 10.0.2.2, 00:03:12, Serial0/0/0
C       10.0.2.0 is directly connected, Serial0/0/0
O    192.168.1.0/24 [110/65] via 10.0.0.1, 00:05:08, Serial0/1/0
C    192.168.2.0/24 is directly connected, FastEthernet0/0
O    192.168.3.0/24 [110/65] via 10.0.2.2, 00:03:12, Serial0/0/0

* Route tables R3 

R3#show 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

     10.0.0.0/30 is subnetted, 3 subnets
O       10.0.0.0 [110/128] via 10.0.1.1, 00:03:44, Serial0/1/0
                 [110/128] via 10.0.2.1, 00:03:44, Serial0/0/0
C       10.0.1.0 is directly connected, Serial0/1/0
C       10.0.2.0 is directly connected, Serial0/0/0
O    192.168.1.0/24 [110/65] via 10.0.1.1, 00:03:54, Serial0/1/0
O    192.168.2.0/24 [110/65] via 10.0.2.1, 00:03:44, Serial0/0/0
C    192.168.3.0/24 is directly connected, FastEthernet0/0

* Test Ping PC to PC 

C:\>ping 192.168.2.2

Pinging 192.168.2.2 with 32 bytes of data:

Reply from 192.168.2.2: bytes=32 time=23ms TTL=126
Reply from 192.168.2.2: bytes=32 time=32ms TTL=126
Reply from 192.168.2.2: bytes=32 time=22ms TTL=126
Reply from 192.168.2.2: bytes=32 time=31ms TTL=126

Ping statistics for 192.168.2.2:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 22ms, Maximum = 32ms, Average = 27ms

C:\>ping 192.168.3.2

Pinging 192.168.3.2 with 32 bytes of data:

Reply from 192.168.3.2: bytes=32 time=15ms TTL=126
Reply from 192.168.3.2: bytes=32 time=13ms TTL=126
Reply from 192.168.3.2: bytes=32 time=22ms TTL=126
Reply from 192.168.3.2: bytes=32 time=13ms TTL=126

Ping statistics for 192.168.3.2:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 13ms, Maximum = 22ms, Average = 15ms
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  • Last modified: 2026/02/04 16:18
  • by ilyasa