From: Stephen Oliver (stevie_oliver@xxxxxxxxxxx)
Date: Sat Jan 05 2002 - 14:26:35 GMT-3
Gary,
I think once the routes have been tagged no-export they don't even get
considered for an eBGP session so you have set them no-export as they come
into your AS and they will not leave your AS. Why not set the no-export at
the next hop in your AS i.e. the router on interface b. So they do not gett
tagged until they are a hop into your AS. The routes will then be passed
out interface c on the eBGP connection as you want and the manipulation is
done elsewhere on in your AS. I tried to set the community to none for the
eBGP session but no luck. Once it's set to no-export then it's not leaving
your AS.
Stevie.
>From: "Christian C. Aguillo" <chris_aguillo@alfalak.com>
>Reply-To: "Christian C. Aguillo" <chris_aguillo@alfalak.com>
>To: "garry baker" <fallow46@yahoo.com>, "GroupStudy"
><ccielab@groupstudy.com>
>Subject: Re: bgp community, can this be done
>Date: Sat, 5 Jan 2002 15:49:01 +0300
>
>Gary,
>
>I think this should be solved by the route-map set community none.
>I am thinking that the route-map logic u have does not match with the one
>being advertised from interface "A" as "no-export". Try to make a simple
>network advertised as no-export and re-check your route-map logic. Are you
>receiving an aggregate and more specific routes from Interface "A" ?
>
>Can you please post the route-map logic and the bgp table for better
>understanding of the router you are in concern.
>
>I dunu if there is an issue between 12.1 from othere IOS versions.
>
>HTH and Mabuhay!!!
>Chris
>----- Original Message -----
>From: "garry baker" <fallow46@yahoo.com>
>To: <ccielab@groupstudy.com>
>Sent: Saturday, January 05, 2002 2:33 PM
>Subject: bgp community, can this be done
>
>
> > Guys,
> >
> > i am playing with some scenerios with bgp and have
> > come up with something that i don't think can be done.
> > say you have a router with 3 interfaces a, b, and c.
> > on interface a i have a route-map setting the routes
> > coming in from that ebgp peer as as no-export, i am
> > passing this to an ibgp peer on int b. now i would
> > like to pass the routes from int a to an ebgp peer out
> > interface c, but the routes are tagged no-export. i
> > believe i can't do this all on one router because when
> > i go to change the community to none when leaving int
> > c it doesn't work. i think it must be an order of
> > operations thing where if the routes are tagged
> > no-export they done't make it to the route-map on the
> > interface to change the community. Do you guys agree
> > with this?
> >
> > Garry
> >
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