Lab 61 - OSPF Redistribution RIP

Pada lab ini kita akan belajar mengkonfigurasi redistribution RIP ke OSPF. Berikut topologi yang akan kita gunakan pada lab ini

Gambar 1 Topologi jaringan OSPF & RIP

Kita hapus dulu konfigurasi yang telah kita lakukan pada lab sebelumnya

R1(config)#router ospf 1
R1(config-router)#no redistribute connected subnets

Pastikan R2 dan R3 tidak memiliki informasi routing tentang IP Loopback R1

R2(config-router)#do sh ip ro

      12.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        12.12.12.0/24 is directly connected, Ethernet0/0
      23.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        23.23.23.0/24 is directly connected, Ethernet0/1

R3(config-router)#do sh ip ro

      12.0.0.0/24 is subnetted, 1 subnets
O        12.12.12.0 [110/20] via 23.23.23.2, 00:24:17, Ethernet0/0
      23.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        23.23.23.0/24 is directly connected, Ethernet0/0

Sekarang kita coba tambahkan sebuah IP Loopback di R1 dan advertise IP tersebut ke RIP kemudian kita advertise ke OSPF

R1(config)#int lo6
R1(config-if)#ip add 100.100.100.1 255.255.255.255

R1(config-if)#router rip
R1(config-router)#ve 2
R1(config-router)#no aut
R1(config-router)#net 100.100.100.0 

R1(config-router)#router ospf 1
R1(config-router)#redistribute rip subnets

Kita coba lihat tabel routing di R2 dan R3

R2(config-router)#do sh ip ro

      12.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        12.12.12.0/24 is directly connected, Ethernet0/0
      23.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        23.23.23.0/24 is directly connected, Ethernet0/1
      100.0.0.0/32 is subnetted, 1 subnets
O E2     100.100.100.1 [110/20] via 12.12.12.1, 00:00:42, Ethernet0/0

R3(config-router)#do sh ip ro

      12.0.0.0/24 is subnetted, 1 subnets
O        12.12.12.0 [110/20] via 23.23.23.2, 00:38:16, Ethernet0/0
      23.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        23.23.23.0/24 is directly connected, Ethernet0/0
      100.0.0.0/32 is subnetted, 1 subnets
O E2     100.100.100.1 [110/20] via 23.23.23.2, 00:01:17, Ethernet0/0

Perhatikan bahwa R2 dan R3 sekarang memiliki informasi tentang IP Loopback R1 (100.100.100.1) dari hasil redistribution. Kita coba lakukan ping dar R3 ke IP Loopback tersebut

R3(config-router)#do ping 100.100.100.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 100.100.100.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms