Topologi
Router 1
interface Loopback0
ip address 1.1.1.1 255.255.255.255
interface Loopback1
ip address 11.11.11.11 255.255.255.255
interface Ethernet0/0
ip address 12.12.12.1 255.255.255.0
interface Ethernet0/1
ip address 21.21.21.1 255.255.255.0
interface Serial1/0
ip address 14.14.14.1 255.255.255.0
serial restart-delay 0
router rip
version 2
network 1.0.0.0
network 12.0.0.0
network 14.0.0.0
network 21.0.0.0
no auto-summary
router bgp 12
bgp log-neighbor-changes
network 11.11.11.11 mask 255.255.255.255
neighbor 4.4.4.4 remote-as 12
neighbor 4.4.4.4 update-source Loopback0
Router 2
interface Loopback0
ip address 2.2.2.2 255.255.255.255
interface Loopback1
ip address 22.22.22.22 255.255.255.255
interface Ethernet0/0
ip address 12.12.12.2 255.255.255.0
interface Ethernet0/1
ip address 21.21.21.2 255.255.255.0
interface Serial1/0
ip address 23.23.23.2 255.255.255.0
serial restart-delay 0
interface Serial1/1
ip address 32.32.32.2 255.255.255.0
serial restart-delay 0
router rip
version 2
network 2.0.0.0
network 12.0.0.0
network 21.0.0.0
network 23.0.0.0
network 32.0.0.0
no auto-summary
router bgp 12
bgp log-neighbor-changes
network 22.22.22.22 mask 255.255.255.255
neighbor 3.3.3.3 remote-as 3
neighbor 3.3.3.3 ebgp-multihop 255
neighbor 3.3.3.3 update-source Loopback0
neighbor 4.4.4.4 remote-as 12
neighbor 4.4.4.4 update-source Loopback0
Router 3
interface Loopback0
ip address 3.3.3.3 255.255.255.255
interface Loopback1
ip address 33.33.33.33 255.255.255.255
interface Serial1/0
ip address 23.23.23.3 255.255.255.0
serial restart-delay 0
interface Serial1/1
ip address 32.32.32.3 255.255.255.0
serial restart-delay 0
router rip
version 2
network 3.0.0.0
network 23.0.0.0
network 32.0.0.0
no auto-summary
router bgp 3
bgp log-neighbor-changes
network 33.33.33.33 mask 255.255.255.255
neighbor 2.2.2.2 remote-as 12
neighbor 2.2.2.2 ebgp-multihop 255
neighbor 2.2.2.2 update-source Loopback0
Router 4
interface Loopback0
ip address 4.4.4.4 255.255.255.255
interface Loopback1
ip address 44.44.44.44 255.255.255.255
interface Serial1/0
ip address 14.14.14.4 255.255.255.0
serial restart-delay 0
router rip
version 2
network 4.0.0.0
network 14.0.0.0
no auto-summary
router bgp 12
bgp log-neighbor-changes
network 44.44.44.44 mask 255.255.255.255
neighbor 1.1.1.1 remote-as 12
neighbor 2.2.2.2 remote-as 12
oke mari kita mulai konfigurasinya, bisa kalian lihat diatas jika semua router yang ada di IBGP memiliki neighbor ke 4.4.4.4 hal ini bermaksud jika router 4 akan dijadikan sebagai route reflector server, oke mari kita lihat ada apa saja konfigurasi pada router 4, kekurangannya jika router server nya mati maka akan menggangu ke semua node yang ada
bisa dilihat jika router 1 dan dua dijadikan route reflector client, route reflector ini akan memudahkan seoarang admistrator jaringan jika dia ingin menambahkan router ke dalam IBGP tidak perlu lagi dilakukan penyesuaian pada setiap router jadi hanya perlu penyeseuain dirouter dia sendiri dan router server nya saja, oke sekarang mari kita cek konfigurasinya
pastikan semua router dapat ping ke router lainnya, bisa dilihat jika konfigurasi diatas berhasil selamat mencoba semoga bermanfaat wasalamualaikum wr wb
