Difference between revisions of "Quagga: BGP 2 BGP redistribute 2 OSPF"

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(Created page with "center|300px|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/...")
 
Line 39: Line 39:
 
   
 
   
  
  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 60: Line 60:
 
  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 82: Line 82:
 
  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 105: Line 105:
 
  enable
 
  enable
 
  configure terminal
 
  configure terminal
   interface Ethernet1/0
+
   interface eth0
     ip address 10.1.1.2 255.255.255.0
+
     ip address 10.1.1.2/24
 
     no shutdown
 
     no shutdown
 
     exit
 
     exit
   interface Ethernet1/1
+
   interface eth1
     ip address 172.16.1.1 255.255.255.0
+
     ip address 172.16.1.1/24
 
     no shutdown
 
     no shutdown
 
     exit
 
     exit
   interface Ethernet1/2
+
   interface eth2
     ip address 172.16.10.1 255.255.255.0
+
     ip address 172.16.10.1/24
 
     no shutdown
 
     no shutdown
 
     exit
 
     exit
   interface Ethernet1/3
+
   interface eth3
     ip address 172.16.20.1 255.255.255.0
+
     ip address 172.16.20.1/24
 
     no shutdown
 
     no shutdown
 
     exit
 
     exit
Line 128: Line 128:
 
  enable
 
  enable
 
  configure terminal
 
  configure terminal
   interface Ethernet1/0
+
   interface eth0
     ip address 10.1.2.2 255.255.255.0
+
     ip address 10.1.2.2/24
 
     no shutdown
 
     no shutdown
 
     exit
 
     exit
   interface Ethernet1/1
+
   interface eth1
     ip address 172.16.1.2 255.255.255.0
+
     ip address 172.16.1.2/24
 
     no shutdown
 
     no shutdown
 
     exit
 
     exit
   interface Ethernet1/2
+
   interface eth2
     ip address 172.16.100.1 255.255.255.0
+
     ip address 172.16.100.1/24
 
     no shutdown
 
     no shutdown
 
     exit
 
     exit
   interface Ethernet1/3
+
   interface eth3
     ip address 172.16.200.1 255.255.255.0
+
     ip address 172.16.200.1/24
 
     no shutdown
 
     no shutdown
 
     exit
 
     exit
Line 157: Line 157:
 
   router bgp 10
 
   router bgp 10
 
   bgp router-id 192.168.1.1
 
   bgp router-id 192.168.1.1
     network 10.100.100.0 mask 255.255.255.0
+
     network 10.100.100.0/24
     network 10.100.200.0 mask 255.255.255.0
+
     network 10.100.200.0/24
 
     neighbor 192.168.1.2 remote-as 30
 
     neighbor 192.168.1.2 remote-as 30
 
   end
 
   end
Line 178: Line 178:
 
     no synchronization
 
     no synchronization
 
     bgp log-neighbor-changes
 
     bgp log-neighbor-changes
     network 10.1.1.0 mask 255.255.255.0
+
     network 10.1.1.0/24
     network 10.1.2.0 mask 255.255.255.0
+
     network 10.1.2.0/24
 
     neighbor 192.168.1.1 remote-as 10
 
     neighbor 192.168.1.1 remote-as 10
 
     redistribute ospf 3 metric 100  
 
     redistribute ospf 3 metric 100  
Line 193: Line 193:
 
   ! area 0 = backbone
 
   ! area 0 = backbone
 
   router ospf 3
 
   router ospf 3
   network 10.1.1.0 0.0.0.255 area 0.0.0.0
+
   network 10.1.1.0/24 area 0.0.0.0
   network 10.1.2.0 0.0.0.255 area 0.0.0.0
+
   network 10.1.2.0/24 area 0.0.0.0
 
   end
 
   end
  
Line 205: Line 205:
 
   ! area 0 = backbone
 
   ! area 0 = backbone
 
   router ospf 4
 
   router ospf 4
   network 10.1.1.0 0.0.0.255 area 0.0.0.0
+
   network 10.1.1.0/24 area 0.0.0.0
   network 172.16.1.0 0.0.0.255 area 0.0.0.0
+
   network 172.16.1.0/24 area 0.0.0.0
   network 172.16.10.0 0.0.0.255 area 0.0.0.0
+
   network 172.16.10.0/24 area 0.0.0.0
   network 172.16.20.0 0.0.0.255 area 0.0.0.0
+
   network 172.16.20.0/24 area 0.0.0.0
 
   end
 
   end
  
Line 220: Line 220:
 
   ! area 0 = backbone
 
   ! area 0 = backbone
 
   router ospf 5
 
   router ospf 5
   network 10.1.2.0 0.0.0.255 area 0.0.0.0
+
   network 10.1.2.0/24 area 0.0.0.0
   network 172.16.1.0 0.0.0.255 area 0.0.0.0
+
   network 172.16.1.0/24 area 0.0.0.0
   network 172.16.100.0 0.0.0.255 area 0.0.0.0
+
   network 172.16.100.0/24 area 0.0.0.0
   network 172.16.200.0 0.0.0.255 area 0.0.0.0
+
   network 172.16.200.0/24 area 0.0.0.0
 
   end
 
   end
  

Revision as of 09:47, 1 January 2019

2BGP-2OSPF.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

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 


R4

IP 10.1.1.2/24 menuju ISP3
IP 172.16.1.1  menuju R5
IP 172.16.10.1 LAN
IP 172.16.20.1 LAN

R5

IP 10.1.2.2/24 menuju ISP3
IP 172.16.1.2  menuju R4
IP 172.16.100.1/24 LAN
IP 172.16.200.1/24 LAN


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

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


R4

enable
configure terminal
  interface eth0
    ip address 10.1.1.2/24
    no shutdown
    exit
  interface eth1
    ip address 172.16.1.1/24
    no shutdown
    exit
  interface eth2
    ip address 172.16.10.1/24
    no shutdown
    exit
  interface eth3
    ip address 172.16.20.1/24
    no shutdown
    exit
 end


R5

enable
configure terminal
  interface eth0
    ip address 10.1.2.2/24
    no shutdown
    exit
  interface eth1
    ip address 172.16.1.2/24
    no shutdown
    exit
  interface eth2
    ip address 172.16.100.1/24
    no shutdown
    exit
  interface eth3
    ip address 172.16.200.1/24
    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 192.168.1.2 remote-as 30
  end

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
    no synchronization
    bgp log-neighbor-changes
    network 10.1.1.0/24
    network 10.1.2.0/24
    neighbor 192.168.1.1 remote-as 10
    redistribute ospf 3 metric 100 
  end

OSPF

ISP3

enable
configure terminal
 !
 ! area 0 = backbone
 router ospf 3
 network 10.1.1.0/24 area 0.0.0.0
 network 10.1.2.0/24 area 0.0.0.0
 end


R4

enable
configure terminal
 !
 ! area 0 = backbone
 router ospf 4
 network 10.1.1.0/24 area 0.0.0.0
 network 172.16.1.0/24 area 0.0.0.0
 network 172.16.10.0/24 area 0.0.0.0
 network 172.16.20.0/24 area 0.0.0.0
 end


R5

enable
configure terminal
  !
  ! area 0 = backbone
  router ospf 5
  network 10.1.2.0/24 area 0.0.0.0
  network 172.16.1.0/24 area 0.0.0.0
  network 172.16.100.0/24 area 0.0.0.0
  network 172.16.200.0/24 area 0.0.0.0
  end

Cek

! perhatikan AS 30 di tambahkan 5x ke routing ke arah AS 10
!
clear ip bgp 10
clear ip bgp 20
show ip bgp
show ip route


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