Choose Specific next hop for EIGRP learned Routes

[GRANT3779]

Hi All,

I have a setup similar to the attached. I am peered with a VPN and MPLS router via EIGRP. The VPN and MPLS routers are not EIGRP neighbours.

Without getting into too much detail as to the WHY - is it possible to achieve the following with route-maps?

any routes learned with a tag 111 I want to make sure my office router always sends traffic destined for these  to the VPN router.

any routes learned with a tag 222 I want to make sure my office router always sends traffic destined for these to the MPLS router.

I should have added - both routers send me the exact same routing table with the same metric.

Thanks

[Mark Malone]

You could try set the route-map to match by the tag and then use set ip next-hop to redirect it to wherever you need

route-map TEST permit 10
 match tag 111
 set ip next-hop 1.1.1.1
!
route-map TEST permit 20
 match tag 222
 set ip next-hop 2.2.2.2
 

[GRANT3779]

Hi Mark,

Was thinking something along the lines of that, but not to sure where would be applying the route map? Would this be under the EIGRP process?

[Mark Malone]

Hi you would apply it at interface level so it redirects the traffic at that point

[Martin Hruby]

Hello

You could also try filtering EIGRP prefixes per neighbor by matching the route-source IP and the tag that the peer attaches to advertised prefixes, like this:

access-list 10 permit 2.2.2.2
access-list 20 permit 1.1.1.1

route-map FILTER permit 10
 match ip route-source 10
 match tag 222

route-map FILTER permit 20
 match ip route-source 20
 match tag 111

router eigrp 2
 distribute-list route-map FILTER in

Please note, all other prefixes not matching any route-map statement will be denied.

Best regards,
Martin

[GRANT3779]

Thanks Both, going to test this out before end of week so will let you know how it goes.

Cheers