So I’m trying to practice MPLS L3 VPN with routing OSPF across it. I’m having
difficulties with my connectivity from one CE device to the other CE device.
Before I started I had plain MPLS working on a flat network end to end. I’m
successful with getting my OSPF routes across the cloud but need help figuring
out why packets won’t travel. Can someone find what I’m missing?
-brad
Setup is straightforward: R1 (CE) – R1Core (PE) – CoreCentral – R2Core (PE)
– R2 (CE)
10.x.x.x
subnets are data networks for the CE
192.168.x.x
subnets are the provider network
Routing portion of the configs listed below:
**R1Core
router ospf 100 vrf BRAD
domain-id 0.0.0.1
log-adjacency-changes
redistribute bgp 100 subnets
network 10.32.0.0 0.0.255.255 area 1
router ospf 1
log-adjacency-changes
network 172.0.0.0 0.255.255.255 area 1
network 192.168.0.0 0.0.255.255 area 0
router bgp 100
no bgp default ipv4-unicast
bgp log-neighbor-changes
neighbor 192.168.1.254 remote-as 100
!
address-family vpnv4
neighbor 192.168.1.254 activate
neighbor 192.168.1.254 send-community both
exit-address-family
!
address-family ipv4 vrf BRAD
redistribute connected
redistribute ospf 100 vrf BRAD
no synchronization
exit-address-family
**** CoreCentral
router ospf 1
mpls ldp autoconfig
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
router bgp 100
no bgp default ipv4-unicast
bgp log-neighbor-changes
neighbor 192.168.1.1 remote-as 100
neighbor 192.168.2.1 remote-as 100
!
address-family vpnv4
neighbor 192.168.1.1 activate
neighbor 192.168.1.1 send-community extended
neighbor 192.168.1.1 route-reflector-client
neighbor 192.168.2.1 activate
neighbor 192.168.2.1 send-community extended
neighbor 192.168.2.1 route-reflector-client
exit-address-family
**R2Core
router ospf 100 vrf BRAD
domain-id 0.0.0.2
log-adjacency-changes
redistribute bgp 100 subnets
network 10.64.0.0 0.0.255.255 area 2
router ospf 1
log-adjacency-changes
network 172.0.0.0 0.255.255.255 area 2
network 192.168.0.0 0.0.255.255 area 0
router bgp 100
no bgp default ipv4-unicast
bgp log-neighbor-changes
neighbor 192.168.2.254 remote-as 100
!
address-family vpnv4
neighbor 192.168.2.254 activate
neighbor 192.168.2.254 send-community both
exit-address-family
!
address-family ipv4 vrf BRAD
redistribute connected
redistribute ospf 100 vrf BRAD
no synchronization
exit-address-family
_______________________________________________
For more information regarding industry leading CCIE Lab training, please visit
www.ipexpert.com
