Cisco: BGP Dua Link main backup - Revision history

Onnowpurbo at 23:59, 23 January 2019

2019-01-23T23:59:54Z

← Older revision		Revision as of 23:59, 23 January 2019
Line 201:		Line 201:
	* [[TCP/IP: Advanced Routing]]		* [[TCP/IP: Advanced Routing]]
	* [[Quagga]]		* [[Quagga]]
			* [[VyOS]]
	* [[Mikrotik]]		* [[Mikrotik]]
	* [[Cisco]]		* [[Cisco]]
	* [[Juniper]]		* [[Juniper]]
	* [[~~BIRD~~: Routing]]		* [[BIRD1]]
			* [[BIRD2]]
			* [[IPv6]]


			* [[TCP/IP: Advanced Routing]]
			* [[IPv6: Advanced Routing]]
			* [[IPv6: Quagga]]
			* [[IPv6: VyOS]]
			* [[IPv6: Mikrotik]]
			* [[IPv6: Cisco]]
			* [[IPv6: Juniper]]
			* [[IPv6: BIRD1]]
			* [[IPv6: BIRD2]]
	* [[IPv6]]		* [[IPv6]]

Onnowpurbo: /* Pranala Menarik */

2018-12-28T10:58:52Z

Pranala Menarik

← Older revision		Revision as of 10:58, 28 December 2018
Line 199:		Line 199:
	==Pranala Menarik==		==Pranala Menarik==

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

Onnowpurbo: /* Cek */

2018-12-27T03:40:36Z

Cek

← Older revision		Revision as of 03:40, 27 December 2018
Line 179:		Line 179:

	==Cek==		==Cek==

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


	show ip route		show ip route

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

2018-12-27T03:36:24Z

Main / Backup Link Setup di ISP3

← Older revision		Revision as of 03:36, 27 December 2018
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	network 10.1.2.0 mask 255.255.255.0		network 10.1.2.0 mask 255.255.255.0
	neighbor 192.168.1.1 remote-as 10		neighbor 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 192.168.2.1 remote-as 20
	neighbor 192.168.1.1 activate		neighbor 192.168.1.1 activate
	neighbor 192.168.2.1 activate		neighbor 192.168.2.1 activate
	~~neighbor 198.168.1.1 route-map PREPEND out~~
	route-map PREPEND permit 10		route-map PREPEND permit 10
	set as-path prepend 30 30 30		set as-path prepend 30 30 30 30 30
	end		end

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

2018-12-27T03:27:04Z

Main / Backup Link Setup di ISP3

← Older revision		Revision as of 03:27, 27 December 2018
Line 171:		Line 171:
	neighbor 192.168.1.1 remote-as 10		neighbor 192.168.1.1 remote-as 10
	neighbor 192.168.2.1 remote-as 20		neighbor 192.168.2.1 remote-as 20
			neighbor 192.168.1.1 activate
			neighbor 192.168.2.1 activate
	neighbor 198.168.1.1 route-map PREPEND out		neighbor 198.168.1.1 route-map PREPEND out
	route-map PREPEND permit 10		route-map PREPEND permit 10
	set as-path prepend 30 30 30		set as-path prepend 30 30 30
	~~neighbor 192.168.1.1 activate~~
	~~neighbor 192.168.2.1 activate~~
	end		end

Onnowpurbo at 03:25, 27 December 2018

2018-12-27T03:25:02Z

@@ Line 150: / Line 150: @@
       neighbor 192.168.2.2 activate
     end
 ISP3:
@@ Line 162: / Line 171: @@
       neighbor 192.168.1.1 remote-as 10
       neighbor 192.168.2.1 remote-as 20
       neighbor 192.168.1.1 activate
       neighbor 192.168.2.1 activate
     end
 ==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..."

2018-12-27T02:54:10Z

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 Eth1/0 -> ISP3 Eth1/0
ISP1 Eth1/1 -> ISP2 Eth1/1
ISP2 Eth1/0 -> ISP3 Eth1/1

ISP1 Eth1/2 10.100.100.1/24
ISP1 Eth1/3 10.100.200.1/24

ISP2 Eth1/2 10.10.10.1/24
ISP2 Eth1/3 10.10.20.1/24

ISP3 Eth1/2 10.1.1.1/24
ISP3 Eth1/3 10.1.2.1/24

==Setup connection==

ISP1

enable
configure terminal
interface Ethernet1/0
ip address 192.168.1.1 255.255.255.0
no shutdown
exit
interface Ethernet1/1
ip address 192.168.3.1 255.255.255.0
no shutdown
exit
interface Ethernet1/2
ip address 10.100.100.1 255.255.255.0
no shutdown
exit
interface Ethernet1/3
ip address 10.100.200.1 255.255.255.0
no shutdown
exit
end

ISP2

enable
configure terminal
interface Ethernet1/0
ip address 192.168.2.1 255.255.255.0
no shutdown
exit
interface Ethernet1/1
ip address 192.168.3.2 255.255.255.0
no shutdown
exit
interface Ethernet1/2
ip address 10.10.10.1 255.255.255.0
no shutdown
exit
interface Ethernet1/3
ip address 10.10.20.1 255.255.255.0
no shutdown
exit
end

ISP3

enable
configure terminal
interface Ethernet1/0
ip address 192.168.1.2 255.255.255.0
no shutdown
exit
interface Ethernet1/1
ip address 192.168.2.2 255.255.255.0
no shutdown
exit
interface Ethernet1/2
ip address 10.1.1.1 255.255.255.0
no shutdown
exit
interface Ethernet1/3
ip address 10.1.2.1 255.255.255.0
no shutdown
exit
end

==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

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

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 192.168.2.1 remote-as 20
neighbor 192.168.1.1 activate
neighbor 192.168.2.1 activate
end

==Main/Backup link setup==

===ISP3===

Lakukan
* accept network kita sendiri
* drop semua tabel IP lainnya, karena kita tidak mau menjadi transit provider
* BGP AS prepend - menaikan AS path

Outgoing filter ke ISP1:

/routing filter
#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

==Cek==

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==

* [[Quagga]]
* [[Mikrotik]]
* [[Cisco]]
* [[Juniper]]