Mikrotik: BGP Dua Link main backup - Revision history

Onnowpurbo: /* Main / Backup Link Setup di ISP3 */

2019-01-03T04:22:54Z

Main / Backup Link Setup di ISP3

← Older revision		Revision as of 04:22, 3 January 2019
Line 121:		Line 121:
	add network=10.1.2.0/24 synchronize=no		add network=10.1.2.0/24 synchronize=no

	==Main / Backup ~~Link Setup di ISP3~~==		==Main/Backup link setup==

	ISP3:		===ISP3===

	Lakukan		Lakukan
Line 130:		Line 130:
	* BGP AS prepend - menaikan AS path		* BGP AS prepend - menaikan AS path

	Outgoing filter ke ISP1:		# setup routing filter
			#
			/routing bgp peer
			set toISP1 in-filter=isp1-in out-filter=isp1-out
			set toISP2 in-filter=isp2-in out-filter=isp2-out
			#
			# Outgoing filter ke ISP1:
			#
	/routing filter		/routing filter
	#accept our networks		#accept our networks
Line 138:		Line 144:
	#discard the rest		#discard the rest
	add chain=isp1-out action=discard		add chain=isp1-out action=discard
			#
	Outgoing filter ke ISP2:		# Outgoing filter ke ISP2:
			#
	/routing filter		/routing filter
	#accept our networks and prepend AS path three times		#accept our networks and prepend AS path three times
	add chain=isp2-out prefix=10.1.1.0/24 action=accept set-bgp-prepend=5		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=5		add chain=isp2-out prefix=10.1.2.0/24 action=accept set-bgp-prepend=3
	#discard the rest		#discard the rest
	add chain=isp2-out action=discard		add chain=isp2-out action=discard
			#
	ISP1 menjadi main		# ISP1 menjadi main
	ISP2 menjadi backup		# ISP2 menjadi backup
			#
	/routing filter		/routing filter
	add chain=isp1-in action=discard		add chain=isp1-in action=discard
	add chain=isp2-in action=discard		add chain=isp2-in action=discard
			#
	/ip route		/ip route
	add gateway=192.168.1.1 check-gateway=ping		add gateway=192.168.1.1 check-gateway=ping

Onnowpurbo: /* BGP Peering */

2019-01-03T04:19:31Z

BGP Peering

@@ Line 79: / Line 79: @@
   #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
+  # jika ingin redistribute default route ke client yang spesifik
+ # add name=toISP2 remote-address=192.168.3.2 remote-as=20 default-originate=if-installed
 ISP2:
@@ Line 91: / Line 99: @@
   add name=toISP1 remote-address=192.168.3.1 remote-as=10
   add name=toISP3 remote-address=192.168.2.2 remote-as=30
 ==Main / Backup Link Setup di ISP3==

Onnowpurbo: /* Cek */

2019-01-02T08:55:00Z

Cek

← Older revision		Revision as of 08:55, 2 January 2019
Line 132:		Line 132:
	==Cek==		==Cek==

			/routing filter print
			/routing bgp instance print
			/routing bgp peer print status
	/routing bgp peer print		/routing bgp peer print
	/routing bgp advertisements print		/routing bgp advertisements print

Onnowpurbo: /* Main / Backup Link Setup di ISP3 */

2019-01-02T08:36:50Z

Main / Backup Link Setup di ISP3

← Older revision		Revision as of 08:36, 2 January 2019
Line 114:		Line 114:
	/routing filter		/routing filter
	#accept our networks and prepend AS path three times		#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=10.1.1.0/24 action=accept set-bgp-prepend=5
	add chain=isp2-out prefix=10.1.2.0/24 action=accept set-bgp-prepend=3		add chain=isp2-out prefix=10.1.2.0/24 action=accept set-bgp-prepend=5
	#discard the rest		#discard the rest
	add chain=isp2-out action=discard		add chain=isp2-out action=discard

Onnowpurbo: /* Cek */

2019-01-02T08:30:00Z

Cek

← Older revision		Revision as of 08:30, 2 January 2019
Line 132:		Line 132:
	==Cek==		==Cek==

	~~! perhatikan AS 30 di tambahkan 5x ke~~ routing ~~ke arah AS 10~~		/routing bgp peer print
	!		/routing bgp advertisements print
	~~show ip~~ bgp		/ip route print


	~~show ip route~~
	~~show ip bgp 10.100.1000.0~~/24
	~~show ip~~ bgp ~~neighbors 192.168.2.2 advertised-routes~~
	~~show~~ ip ~~bgp neighbor 192.168.1.1 routes~~
	~~show bgp ipv4 unicast neighbors~~
	~~show bgp ipv4 unicast summary~~

	==Referensi==		==Referensi==

Onnowpurbo: /* Setup connection */

2019-01-01T08:50:55Z

Setup connection

← Older revision		Revision as of 08:50, 1 January 2019
Line 67:		Line 67:
	/ip address add interface=ether3 address=10.1.1.1/24		/ip address add interface=ether3 address=10.1.1.1/24
	/ip address add interface=ether4 address=10.1.2.1/24		/ip address add interface=ether4 address=10.1.2.1/24



	==BGP Peering==		==BGP Peering==

Onnowpurbo: /* BGP Peering */

2019-01-01T08:44:27Z

BGP Peering

@@ Line 76: / Line 76: @@
 ISP1:
   #set our AS number
@@ Line 102: / Line 86: @@
 ISP2:
   #set our AS number
@@ Line 123: / Line 93: @@
   add name=toISP1 remote-address=192.168.3.1 remote-as=10
   add name=toISP3 remote-address=192.168.2.2 remote-as=30
 ==Main / Backup Link Setup di ISP3==

Onnowpurbo: /* Main / Backup Link Setup di ISP3 */

2019-01-01T04:11:46Z

Main / Backup Link Setup di ISP3

@@ Line 126: / Line 126: @@
 ==Main / Backup Link Setup di ISP3==
 Lakukan
 * accept network kita sendiri
 * drop semua tabel IP lainnya, karena kita tidak mau menjadi transit provider
-* BGP AS prepend - menaikan AS path ke salah satu ISP (disini ISP1)
+* BGP AS prepend - menaikan AS path
-ISP3:
+Outgoing filter ke ISP2:
-  enable
+  /ip route
-  configure terminal
+  add gateway=192.168.1.1 check-gateway=ping
-   router bgp 30
+ add gateway=192.168.2.1 distance=30 check-gateway=ping
 ==Cek==

Onnowpurbo: Created page with "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 10.100.20..."

2019-01-01T04:05:52Z

Created page with "center|900px|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 10.100.20..."

New page

[[File:Bgp-multihoming.png|center|900px|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 10.100.200.0/24

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 Fisik==

ISP1

ISP1 ether0 -> ISP3 ether0
ISP1 ether1 -> ISP2 ether1
ISP2 ether0 -> ISP3 ether1

ISP1 ether2 10.100.100.1/24
ISP1 ether3 10.100.200.1/24

ISP2 ether2 10.10.10.1/24
ISP2 ether3 10.10.20.1/24

ISP3 ether2 10.1.1.1/24
ISP3 ether3 10.1.2.1/24

==Setup connection==

ISP1

/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=ether3 address=10.100.200.1/24

ISP2

/ip address add interface=ether1 address=192.168.2.1/24
/ip address add interface=ether2 address=192.168.3.2/24
/ip address add interface=ether3 address=10.10.10.1/24
/ip address add interface=ether4 address=10.10.20.1/24

ISP3

/ip address add interface=ether1 address=192.168.1.2/24
/ip address add interface=ether2 address=192.168.2.2/24
/ip address add interface=ether3 address=10.1.1.1/24
/ip address add interface=ether4 address=10.1.2.1/24

==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:

enable
configure terminal
router bgp 10
bgp router-id 192.168.1.1
! address-family ipv4 unicast
network 10.100.100.0 mask 255.255.255.0
network 10.100.200.0 mask 255.255.255.0
neighbor 192.168.3.2 remote-as 20
neighbor 192.168.1.2 remote-as 30
neighbor 192.168.3.2 activate
neighbor 192.168.1.2 activate
! neighbor 192.168.3.2 default-originate
! neighbor 192.168.1.2 default-originate
end

#set our AS number
/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:

enable
configure terminal
router bgp 20
bgp router-id 192.168.2.1
! address-family ipv4 unicast
network 10.10.10.0 mask 255.255.255.0
network 10.10.20.0 mask 255.255.255.0
neighbor 192.168.3.1 remote-as 10
neighbor 192.168.2.2 remote-as 30
neighbor 192.168.3.1 activate
neighbor 192.168.2.2 activate
end

#set our AS number
/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

==Main / Backup Link Setup di ISP3==

Lakukan
* accept network kita sendiri
* drop semua tabel IP lainnya, karena kita tidak mau menjadi transit provider
* BGP AS prepend - menaikan AS path ke salah satu ISP (disini ISP1)

ISP3:

enable
configure terminal
router bgp 30
bgp router-id 192.168.1.2
! address-family ipv4 unicast
network 10.1.1.0 mask 255.255.255.0
network 10.1.2.0 mask 255.255.255.0
neighbor 192.168.1.1 remote-as 10
neighbor 198.168.1.1 route-map PREPEND out
neighbor 192.168.2.1 remote-as 20
neighbor 192.168.1.1 activate
neighbor 192.168.2.1 activate
route-map PREPEND permit 10
set as-path prepend 30 30 30 30 30
end

==Cek==

! perhatikan AS 30 di tambahkan 5x ke routing ke arah AS 10
!
show ip bgp

show ip route
show ip bgp 10.100.1000.0/24
show ip bgp neighbors 192.168.2.2 advertised-routes
show ip bgp neighbor 192.168.1.1 routes
show bgp ipv4 unicast neighbors
show bgp ipv4 unicast summary

==Referensi==

* https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bgp/configuration/xe-16/irg-xe-16-book/configuring-a-basic-bgp-network.html
* https://wiki.mikrotik.com/wiki/Manual:Simple_BGP_Multihoming

==Pranala Menarik==

* [[TCP/IP: Advanced Routing]]
* [[Quagga]]
* [[Mikrotik]]
* [[Cisco]]
* [[Juniper]]
* [[BIRD: Routing]]
* [[IPv6]]