Difference between revisions of "Mikrotik: BGP 2 link ke 3 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/...")
 
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ISP1
 
ISP1
  
−
  enable
+
  /ip address add address=192.168.1.1/24 interface=ether1
−
configure terminal
+
/ip address add address=192.168.3.1/24 interface=ether2
−
  interface Ethernet1/0
+
/ip address add address=10.100.100.1/24 interface=ether3
−
    ip address 192.168.1.1 255.255.255.0
+
/ip address add address=10.100.200.1/24 interface=ether4
−
    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
 
ISP2
  
−
  enable
+
  /ip address add interface=ether1 address=192.168.2.1/24
−
configure terminal
+
/ip address add interface=ether2 address=192.168.3.2/24
−
  interface Ethernet1/0
+
/ip address add interface=ether3 address=10.10.10.1/24
−
    ip address 192.168.2.1 255.255.255.0
+
/ip address add interface=ether4 address=10.10.20.1/24
−
    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
 
ISP3
  
−
  enable
+
  /ip address add interface=ether1 address=192.168.1.2/24
−
configure terminal
+
/ip address add interface=ether2 address=192.168.2.2/24
−
  interface Ethernet1/0
+
/ip address add interface=ether3 address=10.1.1.1/24
−
    ip address 192.168.1.2 255.255.255.0
+
/ip address add interface=ether4 address=10.1.2.1/24
−
    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
 
  
 
R4
 
R4
  
−
  enable
+
  /ip address add interface=ether1 address=10.1.1.2/24
−
configure terminal
+
/ip address add interface=ether2 address=172.16.1.1/24
−
  interface Ethernet1/0
+
/ip address add interface=ether3 address=172.16.10.1/24
−
    ip address 10.1.1.2 255.255.255.0
+
/ip address add interface=ether4 address=172.16.20.1/24
−
    no shutdown
 
−
    exit
 
−
  interface Ethernet1/1
 
−
    ip address 172.16.1.1 255.255.255.0
 
−
    no shutdown
 
−
    exit
 
−
  interface Ethernet1/2
 
−
    ip address 172.16.10.1 255.255.255.0
 
−
    no shutdown
 
−
    exit
 
−
  interface Ethernet1/3
 
−
    ip address 172.16.20.1 255.255.255.0
 
−
    no shutdown
 
−
    exit
 
−
  end
 
−
 
 
  
 
R5
 
R5
  
−
  enable
+
  /ip address add interface=ether1 address=10.1.2.2/24
−
configure terminal
+
/ip address add interface=ether2 address=172.16.1.2/24
−
  interface Ethernet1/0
+
/ip address add interface=ether3 address=172.16.100.1/24
−
    ip address 10.1.2.2 255.255.255.0
+
/ip address add interface=ether4 address=172.16.200.1/24
−
    no shutdown
 
−
    exit
 
−
  interface Ethernet1/1
 
−
    ip address 172.16.1.2 255.255.255.0
 
−
    no shutdown
 
−
    exit
 
−
  interface Ethernet1/2
 
−
    ip address 172.16.100.1 255.255.255.0
 
−
    no shutdown
 
−
    exit
 
−
  interface Ethernet1/3
 
−
    ip address 172.16.200.1 255.255.255.0
 
−
    no shutdown
 
−
    exit
 
−
  end
 
−
 
 
−
 
 
  
  

Revision as of 07:30, 5 January 2019

3BGP-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

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

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 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 

/ip address add address=192.168.1.1/24 interface=ether1
/ip address add address=192.168.3.1/24 interface=ether2 
/ip address add address=10.100.100.1/24 interface=ether3
/ip address add address=10.100.200.1/24 interface=ether4

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

R4 

/ip address add interface=ether1 address=10.1.1.2/24
/ip address add interface=ether2 address=172.16.1.1/24
/ip address add interface=ether3 address=172.16.10.1/24
/ip address add interface=ether4 address=172.16.20.1/24

R5 

/ip address add interface=ether1 address=10.1.2.2/24
/ip address add interface=ether2 address=172.16.1.2/24
/ip address add interface=ether3 address=172.16.100.1/24
/ip address add interface=ether4 address=172.16.200.1/24



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

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


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 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 
    redistribute ospf 3 metric 100 
  end


OSPF

ISP3 

enable
configure terminal
 !
 ! area 0 = backbone
 router ospf 3
 network 10.1.1.0 0.0.0.255 area 0.0.0.0
 network 10.1.2.0 0.0.0.255 area 0.0.0.0
 end


R4 

enable
configure terminal
 !
 ! area 0 = backbone
 router ospf 4
 network 10.1.1.0 0.0.0.255 area 0.0.0.0
 network 172.16.1.0 0.0.0.255 area 0.0.0.0
 network 172.16.10.0 0.0.0.255 area 0.0.0.0
 network 172.16.20.0 0.0.0.255 area 0.0.0.0
 end


R5 

enable
configure terminal
  !
  ! area 0 = backbone
  router ospf 5
  network 10.1.2.0 0.0.0.255 area 0.0.0.0
  network 172.16.1.0 0.0.0.255 area 0.0.0.0
  network 172.16.100.0 0.0.0.255 area 0.0.0.0
  network 172.16.200.0 0.0.0.255 area 0.0.0.0
  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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