Quagga: BGP Dua Link main backup: Difference between revisions

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Onnowpurbo (talk | contribs)
69,477 edits
Onnowpurbo (talk | contribs)
69,477 edits
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..."
 
Onnowpurbo (talk | contribs)
69,477 edits
No edit summary
 
Line 30: Line 30:
   
   


  ISP1 Eth1/0 -> ISP3 Eth1/0
  ISP1 Eth0 -> ISP3 Eth0
  ISP1 Eth1/1 -> ISP2 Eth1/1
  ISP1 Eth1 -> ISP2 Eth1
  ISP2 Eth1/0 -> ISP3 Eth1/1
  ISP2 Eth0 -> ISP3 Eth1
   
   
  ISP1 Eth1/2 10.100.100.1/24
  ISP1 Eth2 10.100.100.1/24
  ISP1 Eth1/3 10.100.200.1/24
  ISP1 Eth3 10.100.200.1/24
   
   
  ISP2 Eth1/2 10.10.10.1/24
  ISP2 Eth2 10.10.10.1/24
  ISP2 Eth1/3 10.10.20.1/24
  ISP2 Eth3 10.10.20.1/24
   
   
  ISP3 Eth1/2 10.1.1.1/24
  ISP3 Eth2 10.1.1.1/24
  ISP3 Eth1/3 10.1.2.1/24
  ISP3 Eth3 10.1.2.1/24




Line 51: Line 51:
  enable
  enable
  configure terminal
  configure terminal
   interface Ethernet1/0
   interface eth0
     ip address 192.168.1.1 255.255.255.0
     ip address 192.168.1.1/24
     no shutdown
     no shutdown
     exit
     exit
   interface Ethernet1/1
   interface eth1
     ip address 192.168.3.1 255.255.255.0
     ip address 192.168.3.1/24
     no shutdown
     no shutdown
     exit
     exit
   interface Ethernet1/2
   interface eth2
     ip address 10.100.100.1 255.255.255.0
     ip address 10.100.100.1/24
     no shutdown
     no shutdown
     exit
     exit
   interface Ethernet1/3
   interface eth3
     ip address 10.100.200.1 255.255.255.0
     ip address 10.100.200.1/24
     no shutdown
     no shutdown
     exit
     exit
Line 73: Line 73:
  enable
  enable
  configure terminal
  configure terminal
   interface Ethernet1/0
   interface eth0
     ip address 192.168.2.1 255.255.255.0
     ip address 192.168.2.1/24
     no shutdown
     no shutdown
     exit
     exit
   interface Ethernet1/1
   interface eth1
     ip address 192.168.3.2 255.255.255.0
     ip address 192.168.3.2/24
     no shutdown
     no shutdown
     exit
     exit
   interface Ethernet1/2
   interface eth2
     ip address 10.10.10.1 255.255.255.0
     ip address 10.10.10.1/24
     no shutdown
     no shutdown
     exit
     exit
   interface Ethernet1/3
   interface eth3
     ip address 10.10.20.1 255.255.255.0
     ip address 10.10.20.1/24
     no shutdown
     no shutdown
     exit
     exit
Line 95: Line 95:
  enable
  enable
  configure terminal
  configure terminal
   interface Ethernet1/0
   interface eth0
     ip address 192.168.1.2 255.255.255.0
     ip address 192.168.1.2/24
     no shutdown
     no shutdown
     exit
     exit
   interface Ethernet1/1
   interface eth1
     ip address 192.168.2.2 255.255.255.0
     ip address 192.168.2.2/24
     no shutdown
     no shutdown
     exit
     exit
   interface Ethernet1/2
   interface eth2
     ip address 10.1.1.1 255.255.255.0
     ip address 10.1.1.1/24
     no shutdown
     no shutdown
     exit
     exit
   interface Ethernet1/3
   interface eth3
     ip address 10.1.2.1 255.255.255.0
     ip address 10.1.2.1/24
     no shutdown
     no shutdown
     exit
     exit
Line 124: Line 124:
   router bgp 10
   router bgp 10
   bgp router-id 192.168.1.1
   bgp router-id 192.168.1.1
    ! address-family ipv4 unicast
     network 10.100.100.0/24
     network 10.100.100.0 mask 255.255.255.0
     network 10.100.200.0/24
     network 10.100.200.0 mask 255.255.255.0
     neighbor 192.168.3.2 remote-as 20
     neighbor 192.168.3.2 remote-as 20
     neighbor 192.168.1.2 remote-as 30
     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
   end


Line 142: Line 137:
   router bgp 20
   router bgp 20
   bgp router-id 192.168.2.1
   bgp router-id 192.168.2.1
    ! address-family ipv4 unicast
     network 10.10.10.0/24
     network 10.10.10.0 mask 255.255.255.0
     network 10.10.20.0/24
     network 10.10.20.0 mask 255.255.255.0
     neighbor 192.168.3.1 remote-as 10
     neighbor 192.168.3.1 remote-as 10
     neighbor 192.168.2.2 remote-as 30
     neighbor 192.168.2.2 remote-as 30
    neighbor 192.168.3.1 activate
    neighbor 192.168.2.2 activate
   end
   end


Line 166: Line 158:
   router bgp 30
   router bgp 30
   bgp router-id 192.168.1.2
   bgp router-id 192.168.1.2
    ! address-family ipv4 unicast
     network 10.1.1.0/24
     network 10.1.1.0 mask 255.255.255.0
     network 10.1.2.0/24
     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 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 192.168.2.1 activate
     route-map PREPEND permit 10
     route-map PREPEND permit 10
     set as-path prepend 30 30 30 30 30
     set as-path prepend 30 30 30 30 30

Latest revision as of 01:01, 1 January 2019

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 Eth0 -> ISP3 Eth0
ISP1 Eth1 -> ISP2 Eth1
ISP2 Eth0 -> ISP3 Eth1

ISP1 Eth2 10.100.100.1/24
ISP1 Eth3 10.100.200.1/24

ISP2 Eth2 10.10.10.1/24
ISP2 Eth3 10.10.20.1/24

ISP3 Eth2 10.1.1.1/24
ISP3 Eth3 10.1.2.1/24


Setup connection

ISP1 

enable
configure terminal
  interface eth0
    ip address 192.168.1.1/24
    no shutdown
    exit
  interface eth1
    ip address 192.168.3.1/24
    no shutdown
    exit
  interface eth2
    ip address 10.100.100.1/24
    no shutdown
    exit
  interface eth3
    ip address 10.100.200.1/24
    no shutdown
    exit
 end

ISP2 

enable
configure terminal
  interface eth0
    ip address 192.168.2.1/24
    no shutdown
    exit
  interface eth1
    ip address 192.168.3.2/24
    no shutdown
    exit
  interface eth2
    ip address 10.10.10.1/24
    no shutdown
    exit
  interface eth3
    ip address 10.10.20.1/24
    no shutdown
    exit
 end

ISP3 

enable
configure terminal
  interface eth0
    ip address 192.168.1.2/24
    no shutdown
    exit
  interface eth1
    ip address 192.168.2.2/24
    no shutdown
    exit
  interface eth2
    ip address 10.1.1.1/24
    no shutdown
    exit
  interface eth3
    ip address 10.1.2.1/24
    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
    network 10.100.100.0/24
    network 10.100.200.0/24
    neighbor 192.168.3.2 remote-as 20
    neighbor 192.168.1.2 remote-as 30
  end

ISP2: 


enable
configure terminal
  router bgp 20
  bgp router-id 192.168.2.1
    network 10.10.10.0/24
    network 10.10.20.0/24
    neighbor 192.168.3.1 remote-as 10
    neighbor 192.168.2.2 remote-as 30
  end


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
    network 10.1.1.0/24
    network 10.1.2.0/24
    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
    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

Pranala Menarik

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