EIGRP Static route redistribution question

[Scott Conklin]

Hi, we are currently running EIGRP on our network (2 datacenters and several branch offices).  We are redistributing the statis routes from our 6509 core switches via EIGRP to all other Cisco routing devices.  My query is related to this:

There is one /24 subnet route that we need to advertise via EIGRP, however there is one IP Address within this subnet that we do not want to advertise.  I could manually override this route on the branch office routers with a static route, but I'd like to keep it dynamic via EIGRP.

Currently my distribution list looks like so:

access-list 20 remark === REDISTRIBUTED INTO EIGRP ===

...output omitted..

access-list 20 permit x.x.x.0 0.0.0.255

router eigrp 200

network 10.0.0.0

network 192.168.0.0

redistribute static metric 1000 1000 255 1 1500 route-map static-to-eigrp

route-map static-to-eigrp permit 10

match ip address 10

I want our switches to not advertise a route for IP Address x.x.x.138.  What is the best method for attaining this?

Thanks!

[cadet alain]

Hi,

you can only filter a /32 if this prefix is  a static host route and that IP address is not reachable via  a shorter mask.

if this /32 is not redistributed then EIGRP won't know about it but will know the subnet or summary and so you won't be able to filter it on the EIGRP peer or the redistributing router.

Regards

Alain

Don't forget to rate helpful posts.