BIRD: OSPF Sederhana

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Image6005.gif

Sambungan

R1
eth1: -- R3: eth1
eth2: -- R2: eth1
eth3: -- Internet

R2:
eth1: -- R1: eth2
eth2: -- R3: eth2
eth3: -- LAN 172.16.1.1/16

R3:
eth1: -- R1: eth1
eth2: -- R2: eth2
eth3: -- LAN 192.168.1.1/24


IP address

R1: 

ifconfig eth1 10.10.1.1 netmask 255.255.255.252
ifconfig eth2 10.10.1.5 netmask 255.255.255.252
ifconfig eth3 192.168.122.100 netmask 255.255.255.0
ifconfig eth3 192.168.122.101 netmask 255.255.255.0
ifconfig eth3 192.168.122.102 netmask 255.255.255.0


Router2: 

ifconfig eth1 10.10.1.6 netmask 255.255.255.252
ifconfig eth2 10.10.1.9 netmask 255.255.255.252
ifconfig eth3 172.16.1.1 netmask 255.255.0.0

Router3: 

ifconfig eth1 10.10.1.2 netmask 255.255.255.252
ifconfig eth2 10.10.1.10 netmask 255.255.255.252
ifconfig eth3 192.168.1.1 netmask 255.255.255.0

OSPF

Ada tiga (3) elemen dasar konfigurasi OSPF:

  • Enable OSPF instance
  • OSPF area configuration
  • OSPF network configuration

instance name=default sudah ada, tidak perlu di tambahkan, tapi kalau perlu menambahkan caranya adalah sebagai berikut Catatan: Ingat bahwa backbone area-id adalah 0.0.0.0.


R1: 

# vi /usr/local/etc/bird6.conf  # BIRD appliance di GNS3
vi /etc/bird.conf               # BIRD di OpenWRT

edit 

router id 10.10.1.1;

ipv4 table master4;
ipv6 table master6;

ipv4 table mcast4;
ipv6 table mcast6;

ipv4 table mtab4;
ipv6 table mtab6;

vpn4 table vpntab4;
vpn6 table vpntab6;

vpn4 table vpn4mc;
vpn6 table vpn6mc;

flow4 table flowtab4;
flow6 table flowtab6;

protocol device {
}
protocol ospf 10.10.1.1 {
   area 0 {
      networks {
         10.10.1.0/30;
         10.10.1.4/30;
      }
      interface eth1 {
         neighbors {
            10.10.1.2;
         };
      interface eth2 {
         neighbors {
            10.10.1.6;
         };
      };
   };
}

# BIRD appliance di GNS3
# killall bird6
# /usr/local/sbin/bird6 -u gns3 -g staff &

# BIRD di OpenWRT
killall bird
bird


R2: 

# vi /usr/local/etc/bird6.conf  # BIRD appliance di GNS3
vi /etc/bird.conf               # BIRD di OpenWRT

edit 

router id 10.10.1.6;

ipv4 table master4;
ipv6 table master6;

ipv4 table mcast4;
ipv6 table mcast6;

ipv4 table mtab4;
ipv6 table mtab6;

vpn4 table vpntab4;
vpn6 table vpntab6;

vpn4 table vpn4mc;
vpn6 table vpn6mc;

flow4 table flowtab4;
flow6 table flowtab6;

protocol device {
}
protocol ospf 10.10.1.6 {
   area 0 {
      networks {
         10.10.1.4/30;
         10.10.1.8/30;
         172.16.0.0/16;
      }
      interface eth1 {
         neighbors {
            10.10.1.5;
         };
      interface eth2 {
         neighbors {
            10.10.1.10;
         };
      };
   };
}

# BIRD appliance di GNS3
# killall bird6
# /usr/local/sbin/bird6 -u gns3 -g staff &

# BIRD di OpenWRT
killall bird
bird

R3: 

# vi /usr/local/etc/bird6.conf  # BIRD appliance di GNS3
vi /etc/bird.conf               # BIRD di OpenWRT

edit 

router id 10.10.1.2;

ipv4 table master4;
ipv6 table master6;

ipv4 table mcast4;
ipv6 table mcast6;

ipv4 table mtab4;
ipv6 table mtab6;

vpn4 table vpntab4;
vpn6 table vpntab6;

vpn4 table vpn4mc;
vpn6 table vpn6mc;

flow4 table flowtab4;
flow6 table flowtab6;

protocol device {
}
protocol ospf 10.10.1.2 {
   area 0 {
      networks {
         10.10.1.0/30;
         10.10.1.8/30;
         192.168.1.0/24;
      }
      interface eth1 {
         neighbors {
            10.10.1.1;
         };
      interface eth2 {
         neighbors {
            10.10.1.9;
         };
      };
   };
}

# BIRD appliance di GNS3
# killall bird6
# /usr/local/sbin/bird6 -u gns3 -g staff &

# BIRD di OpenWRT
killall bird
bird

Verify

Cek R1, R2, R3 

show ip ospf database 
show ip ospf neighbor
show ip ospf route 
show ip route

Referensi

Pranala Menarik


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