Hi,
I configured BGP in 2 different ASN. All route did not exchange properly. I am Attaching the topology and configuration of all routers. Plz find the mistake and help me to correct it.
Router 1
!
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
resource policy
!
memory-size iomem 5
!
!
ip cef
no ip domain lookup
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback1
ip address 1.1.1.1 255.255.255.255
!
interface Loopback5
ip address 5.5.5.5 255.255.255.255
!
interface Serial0/0
ip address 10.0.0.1 255.0.0.0
serial restart-delay 0
no dce-terminal-timing-enable
!
interface Serial0/1
ip address 30.0.0.1 255.0.0.0
serial restart-delay 0
no dce-terminal-timing-enable
!
interface Serial0/2
no ip address
shutdown
serial restart-delay 0
no dce-terminal-timing-enable
!
interface Serial0/3
no ip address
shutdown
serial restart-delay 0
no dce-terminal-timing-enable
!
router bgp 10
no synchronization
bgp log-neighbor-changes
network 1.1.1.1
network 5.5.5.5
network 10.0.0.0
network 30.0.0.0
neighbor 2.2.2.2 remote-as 10
neighbor 2.2.2.2 update-source Loopback1
neighbor 3.3.3.3 remote-as 20
neighbor 3.3.3.3 ebgp-multihop 2
neighbor 3.3.3.3 update-source Loopback1
no auto-summary
!
no ip http server
no ip http secure-server
!
ip route 2.2.2.2 255.255.255.255 30.0.0.2
ip route 3.3.3.3 255.255.255.255 10.0.0.2
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
!
!
end
Router 2
!
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R2
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
resource policy
!
memory-size iomem 5
!
!
ip cef
no ip domain lookup
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback1
ip address 2.2.2.2 255.255.255.255
!
interface Loopback10
ip address 11.11.11.11 255.255.255.255
!
interface Serial0/0
ip address 20.0.0.1 255.0.0.0
serial restart-delay 0
no dce-terminal-timing-enable
!
interface Serial0/1
ip address 30.0.0.2 255.0.0.0
serial restart-delay 0
no dce-terminal-timing-enable
!
interface Serial0/2
no ip address
shutdown
serial restart-delay 0
no dce-terminal-timing-enable
!
interface Serial0/3
no ip address
shutdown
serial restart-delay 0
no dce-terminal-timing-enable
!
router bgp 10
no synchronization
bgp log-neighbor-changes
network 2.2.2.2
network 11.11.11.11
network 20.0.0.0
network 30.0.0.0
neighbor 1.1.1.1 remote-as 10
neighbor 1.1.1.1 update-source Loopback1
neighbor 3.3.3.3 remote-as 20
neighbor 3.3.3.3 ebgp-multihop 2
neighbor 3.3.3.3 update-source Loopback1
no auto-summary
!
no ip http server
no ip http secure-server
!
ip route 1.1.1.1 255.255.255.255 30.0.0.1
ip route 3.3.3.3 255.255.255.255 20.0.0.2
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
!
!
end
Router 3
!
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R3
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
resource policy
!
memory-size iomem 5
!
!
ip cef
no ip domain lookup
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback1
ip address 3.3.3.3 255.255.255.255
!
interface Loopback15
ip address 15.15.15.15 255.255.255.255
!
interface Serial0/0
ip address 10.0.0.2 255.0.0.0
serial restart-delay 0
no dce-terminal-timing-enable
!
interface Serial0/1
ip address 20.0.0.2 255.0.0.0
serial restart-delay 0
no dce-terminal-timing-enable
!
interface Serial0/2
no ip address
shutdown
serial restart-delay 0
no dce-terminal-timing-enable
!
interface Serial0/3
no ip address
shutdown
serial restart-delay 0
no dce-terminal-timing-enable
!
router bgp 20
no synchronization
bgp log-neighbor-changes
network 3.3.3.3
network 10.0.0.0
network 15.15.15.15
network 20.0.0.0
neighbor 1.1.1.1 remote-as 10
neighbor 1.1.1.1 ebgp-multihop 2
neighbor 1.1.1.1 update-source Loopback1
neighbor 2.2.2.2 remote-as 10
neighbor 2.2.2.2 ebgp-multihop 2
neighbor 2.2.2.2 update-source Loopback1
no auto-summary
!
no ip http server
no ip http secure-server
!
ip route 1.1.1.1 255.255.255.255 10.0.0.1
ip route 2.2.2.2 255.255.255.255 20.0.0.1
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
!
!
end
