BGP Basic Lab
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| Fig 1 : Border Gateway Protocol Basic Lab |
About Topology
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| Fig 2: BGP Basic Lab Topology |
In the above diagram we have we have two routers router 1 and router 2 and in between the two routers we have a network 1.0.0.0/8. Suppose we have two autonomous system and we configure the Border Gateway Protocol and that is the External Border Gateway Protocol and we will establish the neighbor ship with the loopbacks of the routers forcefully.
Configurations
Router 1's Configurations
!
hostname AS-1
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
ip cef
!
interface Loopback0
ip address 11.11.11.11 255.255.255.0
!
interface FastEthernet0/0
ip address 192.168.1.100 255.255.255.0
duplex auto
speed auto
!
interface Serial0/0
ip address 1.1.1.1 255.0.0.0
no fair-queue
clock rate 2000000
!
!
router bgp 1
no synchronization
bgp log-neighbor-changes
network 11.11.11.0
network 192.168.1.0
neighbor 12.12.12.12 remote-as 2
neighbor 12.12.12.12 ebgp-multihop 2
neighbor 12.12.12.12 update-source Loopback0
no auto-summary
!
ip route 12.12.12.0 255.255.255.0 1.1.1.2
!
!
ip http server
no ip http secure-server
!
control-plane
!
line con 0
line aux 0
line vty 0 4
login
!
!
end
Router 2's Configurations
!
hostname AS-2
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
ip cef
!
interface Loopback0
ip address 12.12.12.12 255.255.255.0
!
interface FastEthernet0/0
ip address 192.168.2.100 255.255.255.0
duplex auto
speed auto
!
interface Serial0/0
ip address 1.1.1.2 255.0.0.0
no fair-queue
clock rate 2000000
!
router bgp 2
no synchronization
bgp log-neighbor-changes
network 12.12.12.0
network 192.168.2.0
neighbor 11.11.11.11 remote-as 1
neighbor 11.11.11.11 ebgp-multihop 2
neighbor 11.11.11.11 update-source Loopback0
no auto-summary
!
ip route 11.11.11.0 255.255.255.0 1.1.1.1
!
!
ip http server
no ip http secure-server
!
control-plane
!
!
line con 0
line aux 0
line vty 0 4
login
!
!
end
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