Mikrotik | Lab.7 BGP Confederation

BGP Confederation adalah solusi untuk full mesh yang ada pada iBGP. Dibuatkan sub-AS dalam satu AS besar. Antar sub-AS dikonfigurasi layanknya seperti eBGP.

Berikut Konfigurasinya:

KONFIG IP  INTERFACE

R1
system identity set name=IMC-R1
ip address add address=12.12.12.1/30 interface=ether1
interface bridge add name=Lo1
ip address add address=192.168.1.1/24 interface=Lo1 

R2
system identity set name=IMC-R2
ip address add address=12.12.12.2/30 interface=ether1
ip address add address=23.23.23.2/30 interface=ether2
ip address add address=24.24.24.2/30 interface=ether3 

R3
system identity set name=IMC-R3
ip address add address=34.34.34.1/30 interface=ether2
ip address add address=23.23.23.1/30 interface=ether1 

R4
system identity set name=IMC-R4
ip address add address=45.45.45.2/30 interface=ether3
ip address add address=34.34.34.2/30 interface=ether2
ip address add address=24.24.24.1/30 interface=ether1 

R5
system identity set name=IMC-R5
ip address add address=45.45.45.1/30 interface=ether1
interface bridge add name=Lo1
ip address add address=192.168.5.1/24 interface=Lo1 

JALNALANKAN BGP PADA R1 (tanpa conferation)

R1
routing bgp instance set default as=100
routing bgp peer add remote-address=12.12.12.2 remote-as=234
routing bgp network add network=192.168.1.0/24 synchronize=no 

JALANKAN IGP-OSPF PADA R2, R3 DAN R4

R2
routing ospf network add network=23.23.23.0/30 area=backbone
routing ospf network add network=12.12.12.0/30 area=backbone
routing ospf network add network=24.24.24.0/30 area=backbone 

R3
routing ospf network add network=23.23.23.0/30 area=backbone
routing ospf network add network=34.34.34.0/30 area=backbone 

R4
routing ospf network add network=45.45.45.0/30 area=backbone
routing ospf network add network=34.34.34.0/30 area=backbonerouting ospf network add network=24.24.24.0/30 area=backbone 

JALANKAN BGP-CONFEDARATION DI (R2,R3,R4)

R2
routing bgp instance set default as=20 confederation=234 confederation-peers=30,40
routing bgp peer add name=peer1 remote-address=12.12.12.1 remote-as=100
routing bgp peer add name=peer2 remote-address=23.23.23.1 remote-as=30 nexthop-choice=force-self

R3
routing bgp instance set default as=30 confederation=234 confederation-peers=20,40
routing bgp peer add name=peer1 remote-address=34.34.34.2 remote-as=40 nexthop-choice=force-self
routing bgp peer add name=peer2 remote-address=23.23.23.2 remote-as=20 nexthop-choice=force-self 

R4
routing bgp instance set default as=40 confederation=234 confederation-peers=30,20
routing bgp peer add name=peer1 remote-address=34.34.34.1 remote-as=30 nexthop-choice=force-self
routing bgp peer add name=peer2 remote-address=45.45.45.1 remote-as=500

KONFIG BGP DI R5 (tanpa conferation)

R5
routing bgp instance set default as=500
routing bgp peer add remote-address=45.45.45.2 remote-as=234
routing bgp network add network=192.168.5.0/24 synchronize=no

VERIFIKASI

R1
[admin@IMC-R1] > ping 192.168.5.1 src-address=192.168.1.1
  SEQ HOST                                     SIZE TTL TIME  STATUS
    0 192.168.5.1                                56  61 7ms
    1 192.168.5.1                                56  61 17ms
    2 192.168.5.1                                56  61 9ms
    3 192.168.5.1                                56  61 12ms
    sent=4 received=4 packet-loss=0% min-rtt=7ms avg-rtt=11ms max-rtt=17ms

R5

[admin@IMC-R5] > ping 192.168.1.1 src-address=192.168.5.1

  SEQ HOST                                     SIZE TTL TIME  STATUS

    0 192.168.1.1                                56  61 6ms

    1 192.168.1.1                                56  61 7ms

    2 192.168.1.1                                56  61 20ms

    sent=3 received=3 packet-loss=0% min-rtt=6ms

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