Lab 6. EIGRP - Filtering - AD

Diinginkan IP Loopback R1 tidak lagi dimunculkan dalam routing tabel R3 dengan cara diset nilai administrative distance (AD) nya menjadi 255.

Misalnya ip 100.100.100.1

kondisi awal cek di R3:

R3(config-router)#do sh ip ro

     100.0.0.0/32 is subnetted, 6 subnets

D       100.100.100.4 [90/435200] via 23.23.23.2, 00:00:04, FastEthernet0/1

D       100.100.100.5 [90/435200] via 23.23.23.2, 00:26:47, FastEthernet0/1

D       100.100.100.6 [90/435200] via 23.23.23.2, 00:00:04, FastEthernet0/1

D       100.100.100.1 [90/435200] via 23.23.23.2, 00:26:47, FastEthernet0/1

D       100.100.100.2 [90/435200] via 23.23.23.2, 00:00:04, FastEthernet0/1

D       100.100.100.3 [90/435200] via 23.23.23.2, 00:26:47, FastEthernet0/1

     3.0.0.0/30 is subnetted, 1 subnets

C       3.3.3.148 is directly connected, Loopback4

     23.0.0.0/24 is subnetted, 1 subnets

C       23.23.23.0 is directly connected, FastEthernet0/1

     12.0.0.0/24 is subnetted, 1 subnets

D       12.12.12.0 [90/307200] via 23.23.23.2, 00:22:33, FastEthernet0/1

R3(config-router)#

dan dari routing tabel diatas, diinginkan bahwa ip 100.100.100.1 tidak mau ditampilkan di R3. Maka  untuk itu kita perlu konfigurasi nilai AD yg paling besar yakni 255.

R3(config)#access-list 2 permit 100.100.100.1

R3(config)#router eigrp 1

R3(config-router)#distance 255 0.0.0.0 255.255.255.255 2

R3(config-router)#

cek lagi

R3(config-router)#do sh ip ro

     100.0.0.0/32 is subnetted, 5 subnets

D       100.100.100.4 [90/435200] via 23.23.23.2, 00:00:27, FastEthernet0/1

D       100.100.100.5 [90/435200] via 23.23.23.2, 00:00:27, FastEthernet0/1

D       100.100.100.6 [90/435200] via 23.23.23.2, 00:00:27, FastEthernet0/1

D       100.100.100.2 [90/435200] via 23.23.23.2, 00:00:27, FastEthernet0/1

D       100.100.100.3 [90/435200] via 23.23.23.2, 00:00:27, FastEthernet0/1

     3.0.0.0/30 is subnetted, 1 subnets

C       3.3.3.148 is directly connected, Loopback4

     23.0.0.0/24 is subnetted, 1 subnets

C       23.23.23.0 is directly connected, FastEthernet0/1

     12.0.0.0/24 is subnetted, 1 subnets

D       12.12.12.0 [90/307200] via 23.23.23.2, 00:00:29, FastEthernet0/1

R3(config-router)#

Berhasil, bahwa ip loopback1 R1 (100.100.100.1) sdh tidak terdapat lagi di dirouting tabel R3.

test ping dari R3 ke 100.100.100.1 (harusnya tdk bisa..)

nampak bahwa ping jg sdh tidak bisa dari R3 ke ip 100.100.100.1. Suksess...

Gimana klo dari R2, nah jika R2 tidak ada msalah tetap bisa ping dan tetap ada di routing tabel

Berbagi :