MPLS VPN HUB Transit

********* PC1 *********

!
interface Ethernet0/0
 ip address 100.0.0.1 255.255.255.0
!
ip route 0.0.0.0 0.0.0.0 100.0.0.254
!

********* PE1 *********

hostname PE1
!
vrf definition A
 rd 1.1.1.1:1
 route-target export 1:1
 route-target import 1:1
 !
 address-family ipv4
  import map DEFAULT
 exit-address-family
!
ip cef
!
!
interface Loopback1
 ip address 1.1.1.1 255.255.255.255
 ip ospf 1 area 0
!
interface Ethernet0/0
 vrf forwarding A
 ip address 100.0.0.254 255.255.255.0
!
interface Ethernet0/1
 ip address 10.0.0.0 255.255.255.254
 ip ospf 1 area 0
 mpls ip
!
router ospf 1
!
router bgp 1
 bgp log-neighbor-changes
 no bgp default ipv4-unicast
 neighbor 5.5.5.5 remote-as 1
 neighbor 5.5.5.5 update-source Loopback1
 !
 address-family ipv4
  neighbor 5.5.5.5 activate
 exit-address-family
 !
 address-family vpnv4
  neighbor 5.5.5.5 activate
  neighbor 5.5.5.5 send-community extended
 exit-address-family
 !
 address-family ipv4 vrf A
  redistribute connected
 exit-address-family
!
ip prefix-list DEFAULT seq 5 permit 0.0.0.0/0
!
route-map DEFAULT permit 10
 match ip address prefix-list DEFAULT


********* P2 *********

interface Loopback1
 ip address 2.2.2.2 255.255.255.255
 ip ospf 1 area 0
!
interface Ethernet0/1
 ip address 10.0.0.1 255.255.255.254
 ip ospf 1 area 0
 mpls ip
!
interface Ethernet0/2
 ip address 10.0.0.2 255.255.255.254
 ip ospf 1 area 0
 mpls ip
!

********* HUB *********

vrf definition A
 rd 5.5.5.5:1
 route-target export 1:1
 route-target import 1:1
 !
 address-family ipv4
 exit-address-family
!
ip cef

!
interface Loopback1
 ip address 5.5.5.5 255.255.255.255
 ip ospf 1 area 0
!
interface Ethernet0/0
 vrf forwarding A
 ip address 50.0.0.254 255.255.255.0
!
interface Ethernet0/1
 no ip address
 shutdown
!
interface Ethernet0/2
 ip address 10.0.0.3 255.255.255.254
 ip ospf 1 area 0
 mpls ip
!
interface Ethernet0/3
 ip address 10.0.0.5 255.255.255.254
 ip ospf 1 area 0
 mpls ip
!
router ospf 1
!
router bgp 1
 bgp log-neighbor-changes
 no bgp default ipv4-unicast
 neighbor 1.1.1.1 remote-as 1
 neighbor 1.1.1.1 update-source Loopback1
 neighbor 3.3.3.3 remote-as 1
 neighbor 3.3.3.3 update-source Loopback1
 !
 address-family ipv4
 exit-address-family
 !
 address-family vpnv4
  neighbor 1.1.1.1 activate
  neighbor 1.1.1.1 send-community extended
  neighbor 1.1.1.1 route-reflector-client
  neighbor 3.3.3.3 activate
  neighbor 3.3.3.3 send-community extended
  neighbor 3.3.3.3 route-reflector-client
 exit-address-family
 !
 address-family ipv4 vrf A
  redistribute connected
  redistribute static
  default-information originate
 exit-address-family

ip route vrf A 0.0.0.0 0.0.0.0 50.0.0.1
!
!

********* P4 *********

interface Loopback1
 ip address 4.4.4.4 255.255.255.255
 ip ospf 1 area 0
!
interface Ethernet0/0
 no ip address
 shutdown
!
interface Ethernet0/1
 ip address 10.0.0.7 255.255.255.254
 ip ospf 1 area 0
 mpls ip
!
interface Ethernet0/2
 no ip address
 shutdown
!
interface Ethernet0/3
 ip address 10.0.0.4 255.255.255.254
 ip ospf 1 area 0
 mpls ip
!

********* P3 *********

hostname PE3
!
vrf definition A
 rd 3.3.3.3:1
 route-target export 1:1
 route-target import 1:1
 !
 address-family ipv4
  import map DEFAULT
 exit-address-family
!
ip cef
!
!
interface Loopback1
 ip address 3.3.3.3 255.255.255.255
 ip ospf 1 area 0
!
interface Ethernet0/0
 vrf forwarding A
 ip address 200.0.0.254 255.255.255.0
!
interface Ethernet0/1
 ip address 10.0.0.6 255.255.255.254
 ip ospf 1 area 0
 mpls ip
!
router ospf 1
!
router bgp 1
 bgp log-neighbor-changes
 no bgp default ipv4-unicast
 neighbor 5.5.5.5 remote-as 1
 neighbor 5.5.5.5 update-source Loopback1
 !
 address-family ipv4
 exit-address-family
 !
 address-family vpnv4
  neighbor 5.5.5.5 activate
  neighbor 5.5.5.5 send-community extended
 exit-address-family
 !
 address-family ipv4 vrf A
  redistribute connected
 exit-address-family
!
ip prefix-list DEFAULT seq 5 permit 0.0.0.0/0
!
route-map DEFAULT permit 10
 match ip address prefix-list DEFAULT

********* PC2 *********

interface Ethernet0/0
 ip address 200.0.0.1 255.255.255.0
!
ip route 0.0.0.0 0.0.0.0 200.0.0.254
!