BGP to OSPF redistribution

[iores]

Hi,

I followed this lab: https://packetlife.net/blog/2010/mar/29/inter-vrf-routing-vrf-lite/ .

However, at the final stage, BGP to OSPF redistribution is not working. Everything else is working fine.

This is my configuration on S1:

ip vrf Blue
 rd 65000:3
!
ip vrf Green
 rd 65000:2
 route-target export 65000:2
 route-target import 65000:99
!
ip vrf Red
 rd 65000:1
 route-target export 65000:1
 route-target import 65000:99
!
ip vrf Shared
 rd 65000:99
 route-target export 65000:99
 route-target import 65000:1
 route-target import 65000:2
!
!
router ospf 1 vrf Red
 redistribute bgp 65000 subnets
 network 0.0.0.0 255.255.255.255 area 0
!
router ospf 2 vrf Green
 redistribute bgp 65000 subnets
 network 0.0.0.0 255.255.255.255 area 0
!
router ospf 3 vrf Blue
 network 0.0.0.0 255.255.255.255 area 0
!
router bgp 65000
 bgp log-neighbor-changes
 bgp redistribute-internal
 !
 address-family ipv4 vrf Blue
  redistribute connected
  redistribute ospf 3
 exit-address-family
 !
 address-family ipv4 vrf Green
  redistribute connected
  redistribute ospf 2
 exit-address-family
 !
 address-family ipv4 vrf Red
  redistribute connected
  redistribute ospf 1
 exit-address-family
 !
 address-family ipv4 vrf Shared
  redistribute connected
 exit-address-family
!

The routing table at S1:

ateway of last resort is not set

      172.16.0.0/16 is variably subnetted, 6 subnets, 3 masks
B        172.16.0.0/24 is directly connected, 00:24:03, Vlan16
L        172.16.0.1/32 is directly connected, Vlan16
B        172.16.1.0/30 is directly connected, 00:24:03, GigabitEthernet0/0
L        172.16.1.2/32 is directly connected, GigabitEthernet0/0
B        172.16.2.0/24 [20/2] via 172.16.0.2 (Red), 00:24:03, Vlan16
B        172.16.3.0/24 [20/2] via 172.16.0.3 (Red), 00:24:03, Vlan16
      172.17.0.0/16 is variably subnetted, 5 subnets, 3 masks
B        172.17.0.0/24 is directly connected, 00:24:03, Vlan17
L        172.17.0.1/32 is directly connected, Vlan17
B        172.17.1.0/30 is directly connected, 00:24:03, GigabitEthernet0/1
L        172.17.1.2/32 is directly connected, GigabitEthernet0/1
B        172.17.2.0/24 [20/2] via 172.17.0.2 (Green), 00:24:03, Vlan17
      192.168.99.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.99.0/24 is directly connected, Loopback99
L        192.168.99.1/32 is directly connected, Loopback99

At S2 and S3 I don't see any route in VRF Red and Green to 192.168.99.0/24 prefix.

For example, this was taken at S2: 

Gateway of last resort is not set

      172.16.0.0/16 is variably subnetted, 6 subnets, 3 masks
C        172.16.0.0/24 is directly connected, Vlan16
L        172.16.0.2/32 is directly connected, Vlan16
O        172.16.1.0/30 [110/2] via 172.16.0.1, 00:34:01, Vlan16
C        172.16.2.0/24 is directly connected, Vlan216
L        172.16.2.1/32 is directly connected, Vlan216
O        172.16.3.0/24 [110/2] via 172.16.0.3, 00:34:01, Vlan16

[Harold Ritter · Accepted solution]

Hi @iores ,

You need to add the following command under the ospf processes configuration on S2 and S3 for vrf Red and Green.

router ospf x vrf xxx

capability vrf-lite

Regards,

[balaji.bandi · Accepted solution]

Try :

router ospf 1 vrf Red
capability vrf-lite

Note : I have same lab setup, I have struggled way back for 1 hour to figure it out. - then I debug and found I missing the above command, once I added I can see the OSPF route E2