Difference between revisions of "VyOS: BGP Sederhana"

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(Created page with "center|400px|thumb Ada tiga (3) ISP ISP1: IP 192.168.1.1/24 menuju ISP3 IP 192.168.3.1/24 menuju ISP2 AS 10 IP 10.100.100.0/24 IP 10.100.2...")
 
 
(19 intermediate revisions by the same user not shown)
Line 25: Line 25:
 
  IP 10.1.2.0/24  
 
  IP 10.1.2.0/24  
  
−
==Setup connection==
 
  
−
ISP1
+
==Sambungan==
−
/ip address add interface=ether1 address=192.168.1.1/24
 
−
/ip address add interface=ether2 address=192.168.3.1/24
 
−
/ip address add interface=ether3 address=10.100.100.1/24
 
−
/ip address add interface=ether4 address=10.100.200.1/24
 
  
−
ISP2
+
R1
−
  /ip address add interface=ether1 address=192.168.2.1/24
+
  e1 --> R3 e1
−
  /ip address add interface=ether2 address=192.168.3.2/24
+
  e2 --> R2 e2
−
  /ip address add interface=ether3 address=10.10.10.1/24
+
  e3 --> LAN 10.100.100.0/24
−
  /ip address add interface=ether4 address=10.10.20.1/24
+
  e4 --> LAN 10.100.200.0/24
  
−
ISP3
+
R2
−
  /ip address add interface=ether1 address=192.168.1.2/24
+
  e1 --> R3 e2
−
  /ip address add interface=ether2 address=192.168.2.2/24
+
  e2 --> R1 e2
−
  /ip address add interface=ether3 address=10.1.1.1/24
+
  e3 --> LAN 10.10.10.0/24
−
  /ip address add interface=ether4 address=10.1.2.1/24
+
  e4 --> LAN 10.10.20.0/24
  
−
==BGP Peering==
+
R3
 +
e1 --> R1 e1
 +
e2 --> R2 e1
 +
e3 --> LAN 10.1.1.0/24
 +
e4 --> LAN 10.1.2.0/24
  
−
Consider that IP connectivity between ISPs edge routers and Our Core router is already set up and working properly. So we can start to establish BGP peering to both ISPs.
+
Setiap kali menjalankan VM VyOS di GNS3, lakukan
  
−
ISP1
+
sudo chown root:useranda /dev/kvm
  
−
#set our AS number
+
sebelum me-RUN setiap VM VyOS satu per satu.
−
/routing bgp instance set default as=10
 
−
#add BGP peers
 
−
/routing bgp peer
 
−
add name=toISP3 remote-address=192.168.1.2 remote-as=30
 
−
add name=toISP2 remote-address=192.168.3.2 remote-as=20
 
  
−
ISP2
+
==Setup connection==
  
−
#set our AS number
+
ISP1
−
/routing bgp instance set default as=20
 
−
#add BGP peers
 
−
/routing bgp peer
 
−
add name=toISP1 remote-address=192.168.3.1 remote-as=10
 
−
add name=toISP3 remote-address=192.168.2.2 remote-as=30
 
  
−
ISP3
+
configure
 +
set interface loopback lo address 1.1.1.1/32
 +
set interfaces ethernet eth1 address 192.168.1.1/24
 +
set interfaces ethernet eth2 address 192.168.3.1/24
 +
set interfaces ethernet eth3 address 10.100.100.1/24
 +
set interfaces ethernet eth4 address 10.100.200.1/24
  
−
  #set our AS number
+
  show
−
  /routing bgp instance set default as=30
+
  commit
−
  #add BGP peers
+
  exit
−
/routing bgp peer
 
−
add name=toISP1 remote-address=192.168.1.1 remote-as=10
 
−
add name=toISP2 remote-address=192.168.2.1 remote-as=20
 
  
−
==Network Advertisements and Routing Filters==
 
  
−
Start advertise our network & filter out all other unnecessary advertisement.
+
ISP2
  
−
ISP1:
+
configure
 +
set interface loopback lo address 1.1.1.1/32
 +
set interfaces ethernet eth1 address 192.168.2.1/24
 +
set interfaces ethernet eth2 address 192.168.3.2/24
 +
set interfaces ethernet eth3 address 10.10.10.1/24
 +
set interfaces ethernet eth4 address 10.10.20.1/24
  
−
  # advertise out network
+
  show
−
  /routing bgp network
+
  commit
−
  add network=10.100.100.0/24 synchronize=no
+
  exit
−
add network=10.100.200.0/24 synchronize=no
 
  
−
# routing filter
 
−
/routing bgp peer
 
−
set isp2 in-filter=isp2-in out-filter=isp2-out
 
−
set isp3 in-filter=isp3-in out-filter=isp3-out
 
  
−
ISP2:
 
  
−
# advertise out network
+
ISP3
−
/routing bgp network
 
−
add network=10.10.10.0/24 synchronize=no
 
−
add network=10.10.20.0/24 synchronize=no
 
  
−
  # routing filter
+
  configure
−
  /routing bgp peer
+
  set interface loopback lo address 1.1.1.1/32
−
  set isp1 in-filter=isp1-in out-filter=isp1-out
+
set interfaces ethernet eth1 address 192.168.1.2/24
−
  set isp3 in-filter=isp3-in out-filter=isp3-out
+
  set interfaces ethernet eth2 address 192.168.2.2/24
 +
  set interfaces ethernet eth3 address 10.1.1.1/24
 +
set interfaces ethernet eth4 address 10.1.2.1/24
  
−
ISP3:
+
show
 +
commit
 +
exit
  
−
# advertise out network
+
==BGP Peering==
−
/routing bgp network
 
−
add network=10.1.1.0/24 synchronize=no
 
−
add network=10.1.2.0/24 synchronize=no
 
  
−
# routing filter
+
Consider that IP connectivity between ISPs edge routers and Our Core router is already set up and working properly. So we can start to establish BGP peering to both ISPs.
−
/routing bgp peer
 
−
set isp1 in-filter=isp1-in out-filter=isp1-out
 
−
set isp2 in-filter=isp2-in out-filter=isp2-out
 
  
−
Catatan:
+
ISP1
  
−
* in-filter untuk incoming (received) prefixes
+
set protocols bgp 10 parameters router-id 192.168.1.1
−
* out-filter untuk advertised prefixes.
+
set protocols bgp 10 network 10.100.100.0/24
 +
set protocols bgp 10 network 10.100.200.0/24
 +
# set protocols bgp 10 neighbor 192.168.1.2 ebgp-multihop 2
 +
set protocols bgp 10 neighbor 192.168.1.2 update-source 192.168.1.1
 +
set protocols bgp 10 neighbor 192.168.1.2 remote-as 30
 +
# set protocols bgp 10 neighbor 192.168.3.2 ebgp-multihop 2
 +
set protocols bgp 10 neighbor 192.168.3.2 update-source 192.168.3.1
 +
set protocols bgp 10 neighbor 192.168.3.2 remote-as 20
  
−
==Main/Backup link setup==
+
show
 +
commit
 +
exit
  
−
===ISP3===
+
ISP2
  
−
Lakukan
+
set protocols bgp 20 parameters router-id 192.168.2.1
−
* accept network kita sendiri
+
set protocols bgp 20 network 10.10.10.0/24
−
* drop semua tabel IP lainnya, karena kita tidak mau menjadi transit provider
+
set protocols bgp 20 network 10.10.20.0/24
−
* BGP AS prepend - menaikan AS path
+
# set protocols bgp 20 neighbor 192.168.3.1 ebgp-multihop 2
 +
set protocols bgp 20 neighbor 192.168.3.1 update-source 192.168.2.1
 +
set protocols bgp 20 neighbor 192.168.3.1 remote-as 10
 +
# set protocols bgp 20 neighbor 192.168.2.2 ebgp-multihop 2
 +
set protocols bgp 20 neighbor 192.168.2.2 update-source 192.168.2.1
 +
set protocols bgp 20 neighbor 192.168.2.2 remote-as 30
  
−
Outgoing filter ke ISP1:
+
show
 +
commit
 +
exit
  
−
/routing filter
+
ISP3
−
#accept our networks
 
−
add chain=isp1-out prefix=10.1.1.0/24 action=accept
 
−
add chain=isp1-out prefix=10.1.2.0/24 action=accept
 
−
#discard the rest
 
−
add chain=isp1-out action=discard
 
−
 
 
−
Outgoing filter ke ISP2:
 
−
 
 
−
/routing filter
 
−
#accept our networks and prepend AS path three times
 
−
add chain=isp2-out prefix=10.1.1.0/24 action=accept set-bgp-prepend=3
 
−
add chain=isp2-out prefix=10.1.2.0/24 action=accept set-bgp-prepend=3
 
−
#discard the rest
 
−
add chain=isp2-out action=discard
 
−
 
 
−
ISP1 menjadi main
 
−
ISP2 menjadi backup
 
−
 
 
−
/routing filter
 
−
add chain=isp1-in action=discard
 
−
add chain=isp2-in action=discard
 
−
 
 
−
/ip route
 
−
add gateway=192.168.1.1 check-gateway=ping
 
−
add gateway=192.168.2.1 distance=30 check-gateway=ping
 
−
 
 
−
 
 
−
==Load sharing setup==
 
−
 
 
−
 
 
−
Teknik melakukan multihoming / download sharing
 
−
 
 
−
[[File:Bgp-multihoming-download-sharing.png|center|400px|thumb]]
 
−
 
 
−
===ISP3===
 
−
 
 
−
Disini salah satu network kita di prepend yang berbeda antara ISP1 dan ISP2
 
−
 
 
−
Outgoing filter ke ISP1:
 
−
 
 
−
/routing filter
 
−
#accept our networks and prepend second network
 
−
add chain=isp1-out prefix=10.1.1.0/24 action=accept
 
−
add chain=isp1-out prefix=10.1.2.0/24 action=accept  set-bgp-prepend=3
 
−
#discard the rest
 
−
add chain=isp1-out action=discard
 
−
 
 
−
Outgoing filter ke ISP2:
 
  
−
  /routing filter
+
  set protocols bgp 30 parameters router-id 192.168.1.2
−
  #accept our networks and prepend first network
+
  set protocols bgp 30 network 10.1.1.0/24
−
  add chain=isp2-out prefix=10.1.1.0/24 action=accept set-bgp-prepend=3
+
  set protocols bgp 30 network 10.1.2.0/24
−
  add chain=isp2-out prefix=10.1.2.0/24 action=accept
+
# set protocols bgp 30 neighbor 192.168.1.1 ebgp-multihop 2
−
  #discard the rest
+
set protocols bgp 30 neighbor 192.168.1.1 update-source 192.168.1.2
−
  add chain=isp2-out action=discard
+
  set protocols bgp 30 neighbor 192.168.1.1 remote-as 10
 +
# set protocols bgp 30 neighbor 192.168.2.1 ebgp-multihop 2
 +
  set protocols bgp 30 neighbor 192.168.2.1 update-source 192.168.1.2
 +
  set protocols bgp 30 neighbor 192.168.2.1 remote-as 20
  
−
Konfigurasi di atas hanya untuk outgoing packet dari network kita. Ada beberapa pilihan,
+
show
 +
commit
 +
exit
  
−
* biarkan gateway menggunakan konfigurasi main/backup - ini akan menyebabkan hanya satu link yang digunakan dan routing akan asymetric.
+
==Test==
−
* gunakan policy routing untuk memaksa outgoing packet menggunakan link yang sama dengan dengan incoming
 
−
* Menggunakan BGP untuk menerima full routing table dari ke dua peer dan menggunakan BGP attribute untuk melakukan routing melalui satu sambungan / link dan sebagian lagi melalui link lainnya. Contoh, traffic local / nasional bisa dikirim menggunakan ISP1 dan Internasional menggunakan ISP2.
 
−
 
  
 +
show interfaces
 +
show ip bgp scan
 +
show ip bgp summary
 +
show ip bgp rsclient summary
 +
show ip bgp neighbors 192.168.1.2
 +
show ip route
  
 
==Referensi==
 
==Referensi==
Line 210: Line 170:
 
* [[Cisco]]
 
* [[Cisco]]
 
* [[Juniper]]
 
* [[Juniper]]
−
* [[BIRD: Routing]]
+
* [[BIRD1]]
 +
* [[BIRD2]]
 
* [[IPv6]]
 
* [[IPv6]]
  
Line 217: Line 178:
 
* [[IPv6: Advanced Routing]]
 
* [[IPv6: Advanced Routing]]
 
* [[IPv6: Quagga]]
 
* [[IPv6: Quagga]]
 +
* [[IPv6: VyOS]]
 
* [[IPv6: Mikrotik]]
 
* [[IPv6: Mikrotik]]
 
* [[IPv6: Cisco]]
 
* [[IPv6: Cisco]]
 
* [[IPv6: Juniper]]
 
* [[IPv6: Juniper]]
−
* [[IPv6: BIRD: Routing]]
+
* [[IPv6: BIRD1]]
 +
* [[IPv6: BIRD2]]
 
* [[IPv6]]
 
* [[IPv6]]

Latest revision as of 11:15, 20 January 2019

Bgp-multihoming.png


Ada tiga (3) ISP

ISP1: 

IP 192.168.1.1/24 menuju ISP3
IP 192.168.3.1/24 menuju ISP2
AS 10
IP 10.100.100.0/24
IP 10.100.200.0/24

ISP2 

IP 192.168.2.1/24 - menuju ISP3
IP 192.168.3.2/24 - menuju ISP1
AS 20
IP 10.10.10.0/24
IP 10.10.20.0/24

ISP3 (kita) 

IP 192.168.1.2/24 - menuju ISP1
IP 192.168.2.2/24 - menuju ISP2
AS 30
IP 10.1.1.0/24
IP 10.1.2.0/24


Sambungan

R1
e1 --> R3 e1
e2 --> R2 e2 
e3 --> LAN 10.100.100.0/24
e4 --> LAN 10.100.200.0/24

R2
e1 --> R3 e2
e2 --> R1 e2
e3 --> LAN 10.10.10.0/24
e4 --> LAN 10.10.20.0/24

R3
e1 --> R1 e1
e2 --> R2 e1
e3 --> LAN 10.1.1.0/24
e4 --> LAN 10.1.2.0/24

Setiap kali menjalankan VM VyOS di GNS3, lakukan 

sudo chown root:useranda /dev/kvm

sebelum me-RUN setiap VM VyOS satu per satu.

Setup connection

ISP1 

configure
set interface loopback lo address 1.1.1.1/32
set interfaces ethernet eth1 address 192.168.1.1/24
set interfaces ethernet eth2 address 192.168.3.1/24
set interfaces ethernet eth3 address 10.100.100.1/24
set interfaces ethernet eth4 address 10.100.200.1/24

show
commit
exit


ISP2 

configure
set interface loopback lo address 1.1.1.1/32
set interfaces ethernet eth1 address 192.168.2.1/24
set interfaces ethernet eth2 address 192.168.3.2/24
set interfaces ethernet eth3 address 10.10.10.1/24
set interfaces ethernet eth4 address 10.10.20.1/24

show
commit
exit


ISP3 

configure
set interface loopback lo address 1.1.1.1/32
set interfaces ethernet eth1 address 192.168.1.2/24
set interfaces ethernet eth2 address 192.168.2.2/24
set interfaces ethernet eth3 address 10.1.1.1/24
set interfaces ethernet eth4 address 10.1.2.1/24

show
commit
exit

BGP Peering

Consider that IP connectivity between ISPs edge routers and Our Core router is already set up and working properly. So we can start to establish BGP peering to both ISPs.

ISP1 

set protocols bgp 10 parameters router-id 192.168.1.1
set protocols bgp 10 network 10.100.100.0/24
set protocols bgp 10 network 10.100.200.0/24
# set protocols bgp 10 neighbor 192.168.1.2 ebgp-multihop 2
set protocols bgp 10 neighbor 192.168.1.2 update-source 192.168.1.1
set protocols bgp 10 neighbor 192.168.1.2 remote-as 30
# set protocols bgp 10 neighbor 192.168.3.2 ebgp-multihop 2
set protocols bgp 10 neighbor 192.168.3.2 update-source 192.168.3.1
set protocols bgp 10 neighbor 192.168.3.2 remote-as 20

show
commit
exit

ISP2 

set protocols bgp 20 parameters router-id 192.168.2.1
set protocols bgp 20 network 10.10.10.0/24
set protocols bgp 20 network 10.10.20.0/24
# set protocols bgp 20 neighbor 192.168.3.1 ebgp-multihop 2
set protocols bgp 20 neighbor 192.168.3.1 update-source 192.168.2.1
set protocols bgp 20 neighbor 192.168.3.1 remote-as 10
# set protocols bgp 20 neighbor 192.168.2.2 ebgp-multihop 2
set protocols bgp 20 neighbor 192.168.2.2 update-source 192.168.2.1
set protocols bgp 20 neighbor 192.168.2.2 remote-as 30

show
commit
exit

ISP3 

set protocols bgp 30 parameters router-id 192.168.1.2
set protocols bgp 30 network 10.1.1.0/24
set protocols bgp 30 network 10.1.2.0/24
# set protocols bgp 30 neighbor 192.168.1.1 ebgp-multihop 2
set protocols bgp 30 neighbor 192.168.1.1 update-source 192.168.1.2
set protocols bgp 30 neighbor 192.168.1.1 remote-as 10
# set protocols bgp 30 neighbor 192.168.2.1 ebgp-multihop 2
set protocols bgp 30 neighbor 192.168.2.1 update-source 192.168.1.2
set protocols bgp 30 neighbor 192.168.2.1 remote-as 20

show
commit
exit

Test

show interfaces
show ip bgp scan 
show ip bgp summary
show ip bgp rsclient summary 
show ip bgp neighbors 192.168.1.2 
show ip route

Referensi


Pranala Menarik


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