Quagga: OSPF Sederhana - dengan MD5 Authentication
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Topologi
R1
e1 -- R3: e1 e2 -- R2: e1 e3 -- NAT: Internet
R2
e1 -- R1: e2 e2 -- R3: e2 e3 -- LAN 172.16.1.1
R3
e1 -- R1: e1 e2 -- R2: e2 e3 -- LAN 192.168.1.1
Konfigurasi
Router1:
vtysh
configure terminal
interface eth1
ip address 10.10.1.1/30
ip ospf message-digest-key 1 md5 $AP7i1
no shutdown
exit
interface eth2
ip address 10.10.1.5/30
ip ospf message-digest-key 1 md5 $AP7i1
no shutdown
exit
!
! NAT GNS3 gw 192.168.122.1
interface eth3
ip address 192.168.122.100/24
ip address 192.168.122.101/24
ip address 192.168.122.102/24
no shutdown
ip route 0.0.0.0/0 192.168.122.1
end
Router2:
vtysh
configure terminal
interface eth1
ip address 10.10.1.6/30
ip ospf message-digest-key 1 md5 $AP7i1
no shutdown
exit
interface eth2
ip address 10.10.1.9/30
ip ospf message-digest-key 1 md5 $AP7i1
no shutdown
exit
interface eth3
ip address 172.16.1.1/16
no shutdown
end
Router3:
vtysh
configure terminal
interface eth1
ip address 10.10.1.2/30
ip ospf message-digest-key 1 md5 $AP7i1
no shutdown
exit
interface eth2
ip address 10.10.1.10/30
ip ospf message-digest-key 1 md5 $AP7i1
no shutdown
exit
interface eth3
ip address 192.168.1.1/24
no shutdown
end
Ada tiga (3) elemen dasar konfigurasi OSPF:
- Enable OSPF instance
- OSPF area configuration
- OSPF network configuration
Catatan: Ingat bahwa backbone area-id adalah 0.0.0.0.
R1
vtysh configure terminal ! ! area 0 = backbone router ospf network 10.10.1.0/30 area 0.0.0.0 network 10.10.1.4/30 area 0.0.0.0 area 0.0.0.0 authentication message-digest end
R2
vtysh configure terminal ! ! area 0 = backbone router ospf network 10.10.1.4/30 area 0.0.0.0 network 10.10.1.8/30 area 0.0.0.0 network 172.16.0.0/16 area 0.0.0.0 area 0.0.0.0 authentication message-digest end
R3
vtysh configure terminal ! ! area 0 = backbone router ospf network 10.10.1.0/30 area 0.0.0.0 network 10.10.1.8/30 area 0.0.0.0 network 192.168.1.0/24 area 0.0.0.0 area 0.0.0.0 authentication message-digest end
Verify
Cek di R1, R2, R3
show ip ospf neighbor show ip ospf database show ip route
Referensi