Lab 76 - Mutual Redistribution

Pada lab-lab sebelumnya, kita hanya melakukan one way redistribution. Misal redistribution antara EIGRP dengan RIP, kita hanya melakukan konfigurasi redistribution pada EIGRP, begitu juga dengan OSPF. Selanjutnya pada lab ini kita akan belajar melakukan two way redistribution. Berikut topologi yang akan kita gunakan pada lab ini

Gambar 1 Topologi jaringan mutual redistribution

Pertama kita konfigurasikan IP Address dan routing RIP di R1

R1(config)#int e0/0
R1(config-if)#no sh
R1(config-if)#ip add 12.12.12.1 255.255.255.0

R1(config-if)#router rip
R1(config-router)#ve 2         
R1(config-router)#no aut
R1(config-router)#net 12.12.12.0

Selanjutnya kita konfigurasi pada R2, perhatikan bahwa R2 terletak pada jaringan RIP dan OSPF sekaligus. Oleh karena itu kita harus melakukan redistribution pada router ini

R2(config)#int e0/0
R2(config-if)#no sh
R2(config-if)#ip add 12.12.12.2 255.255.255.0

R2(config-if)#int e0/1
R2(config-if)#no sh
R2(config-if)#ip add 23.23.23.2 255.255.255.0

R2(config-if)#router rip
R2(config-router)#ve 2
R2(config-router)#no au
R2(config-router)#net 12.12.12.0     
R2(config-router)#redistribute ospf 1 metric 1

R2(config-router)#router ospf 1
R2(config-router)#net 23.23.23.0 0.0.0.255 are 0
R2(config-router)#redistribute rip subnets 

Lanjut konfigurasi pada R3, perhatikan bahwa R3 juga terletak pada dua jaringan sekaligus, yaitu OSPF dan EIGRP. Jadi kita juga harus konfigurasi redistribution di router ini

R3(config)#int e0/0
R3(config-if)#no sh
R3(config-if)#ip add 23.23.23.3 255.255.255.0

R3(config-if)#int e0/1
R3(config-if)#no sh
R3(config-if)#ip add 34.34.34.3 255.255.255.0

R3(config-if)#router ospf 1
R3(config-router)#net 23.23.23.0 0.0.0.255 are 0
R3(config-router)#redistribute eigrp 1 subnets

R3(config-router)#router eigrp 1
R3(config-router)#no auto
R3(config-router)#net 34.34.34.0 
R3(config-router)#redistribute ospf 1 metric 1 1 1 1 1

Sekarang kita konfig di R4. disini kita juga harus melakukan redistribution antara EIGRP dan RIP

R4(config)#int e0/0
R4(config-if)#no sh
R4(config-if)#ip add 34.34.34.4 255.255.255.0

R4(config-if)#int e0/1
R4(config-if)#no sh
R4(config-if)#ip add 45.45.45.4 255.255.255.0

R4(config-if)#router eigrp 1
R4(config-router)#no auto            
R4(config-router)#net 34.34.34.0
R4(config-router)#redistribute rip metric 1 1 1 1 1

R4(config-router)#router rip
R4(config-router)#ve 2
R4(config-router)#no auto
R4(config-router)#net 45.45.45.0
R4(config-router)#redistribute eigrp 1 metric 1

Terahir kita konfigurasi pada R5, disini kita hanya perlu konfigurasi RIP

R5(config)#int e0/0
R5(config-if)#no sh
R5(config-if)#ip add 45.45.45.5 255.255.255.0

R5(config-if)#router rip
R5(config-router)#ve 2
R5(config-router)#no auto
R5(config-router)#net 45.45.45.0

Untuk pengujian, kita coba lihat tabel routing pada masing-masing router, pastikan setiap router sudah memiliki informasi tentang seluruh remote networknya

R1(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
      23.0.0.0/24 is subnetted, 1 subnets
R        23.23.23.0 [120/1] via 12.12.12.2, 00:00:11, Ethernet0/0
      34.0.0.0/24 is subnetted, 1 subnets
R        34.34.34.0 [120/1] via 12.12.12.2, 00:00:11, Ethernet0/0
      45.0.0.0/24 is subnetted, 1 subnets
R        45.45.45.0 [120/1] via 12.12.12.2, 00:00:11, Ethernet0/0

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
      34.0.0.0/24 is subnetted, 1 subnets
O E2     34.34.34.0 [110/20] via 23.23.23.3, 00:04:58, Ethernet0/1
      45.0.0.0/24 is subnetted, 1 subnets
O E2     45.45.45.0 [110/20] via 23.23.23.3, 00:03:01, Ethernet0/1

R3(config-router)#do sh ip ro

      12.0.0.0/24 is subnetted, 1 subnets
O E2     12.12.12.0 [110/20] via 23.23.23.2, 00:05:30, 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
      34.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        34.34.34.0/24 is directly connected, Ethernet0/1
      45.0.0.0/24 is subnetted, 1 subnets
D EX     45.45.45.0 [170/2560025856] via 34.34.34.4, 00:03:26, Ethernet0/1

R4(config-router)#do sh ip ro

      12.0.0.0/24 is subnetted, 1 subnets
D EX     12.12.12.0 [170/2560025856] via 34.34.34.3, 00:04:06, Ethernet0/0
      23.0.0.0/24 is subnetted, 1 subnets
D EX     23.23.23.0 [170/2560025856] via 34.34.34.3, 00:04:06, Ethernet0/0
      34.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        34.34.34.0/24 is directly connected, Ethernet0/0
      45.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        45.45.45.0/24 is directly connected, Ethernet0/1

R5(config-router)#do sh ip ro

      12.0.0.0/24 is subnetted, 1 subnets
R        12.12.12.0 [120/1] via 45.45.45.4, 00:00:04, Ethernet0/0
      23.0.0.0/24 is subnetted, 1 subnets
R        23.23.23.0 [120/1] via 45.45.45.4, 00:00:04, Ethernet0/0
      34.0.0.0/24 is subnetted, 1 subnets
R        34.34.34.0 [120/1] via 45.45.45.4, 00:00:04, Ethernet0/0
      45.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        45.45.45.0/24 is directly connected, Ethernet0/0

Perhatikan bahwa setiap router sudah memiliki tabel routing yang lengkap