do you need mp-bgp to route between vrf's

[carl_townshend]

Hi All

do you need mp-bgp to route between vrf's? or could you use eigrp etc?

[Julio E. Moisa]

Hi

It is not required If you are not going to use it over MPLS. VRF is significant locally. 

For example if your topology is like:

R1 (VRF) ----- R2 ---- R3

You can use EIGRP on the 3 routers but you must run EIGRP over the VRF.

router eigrp TEST

address-family ip4v4 vrf MY-VRF autonomous-system 100

It can be made over EIGRP named instance only.

Hope it is useful

:-)

[carl_townshend]

can you give me an example of routing between them on 1 router, route leaking ?

[Julio E. Moisa]

Hi

Sure, for example

R1 (VRF) f0/0 ----- fa0/0 R2

R1

ip vrf A

rd 1:1

(router-target is not required if you will not use MPLS)

interface loopback0

ip vrf forwarding A

ip address 1.1.1.1 255.255.255.255

interfarce fa0/0
ip vrf forwarding A
ip address 10.12.0.1 255.255.255.0

no shutdown

router eigrp MY-EIGRP

address-family ipv4 vrf A autonomous-system 100

network 10.12.0.1 0.0.0.0

network 1.1.1.1 0.0.0.0

R2

interface loopback0

ip address 2.2.2.2 255.255.255.255

interfarce fa0/0
ip address 10.12.0.2 255.255.255.0

no shutdown

router eigrp 100

network 10.12.0.2  0.0.0.0

network 2.2.2.2 0.0.0.0

no auto-summary

 Or

router eigrp MY-EIGRP

address-family ipv4 unicast autonomous-system 100

network 10.12.0.2  0.0.0.0

network 2.2.2.2 0.0.0.0

no auto-summary

Hope it is useful

:-)

[carl_townshend]

im talking about routing between 2 different vrf's, yours looks like the same?

[Julio E. Moisa]

If it is for different VRF you could not intercommunicate them directly because they have different instance, different routing tables. You can just leak the routes using import/export maps or trying with the route-maps:

ip vrf A

rd 1:1

route-target export 1:1

route-target import 1:1

route-target import 2:2

ip vrf B

rd 2:2

route-target export 2:2

route-target import 2:2

route-target import 1:1

[carl_townshend]

i think you will still need to redistribute between the protocols even with the import/export maps?

I hear you can only do this with mp-bgp?