From: fwells12 (fwells12@xxxxxxxxxxx)
Date: Sun Apr 01 2001 - 02:19:44 GMT-3
This is true. However, it still does not stop the directly connected AS'
from using your AS as a transit, it will only stop the AS' beyond those
directly connected ones from seeing your routes. If those remote AS' had
default routes to the directly connected AS', your AS may still be used as a
transit AS by the directly connected ones. The only way to be sure your AS
will not become a transit it to make sure that only routes that originate
inside your AS are advertised to other AS'.
To comment on the other comment, it does not make any difference how you
advertise those routes. Route maps are just a tool to help you filter and
manipulate attributes.
----- Original Message -----
From: Erick B. <erickbe@yahoo.com>
To: Richard Foltz <globalfx@netropolis.net>; <ccielab@groupstudy.com>
Sent: Saturday, March 31, 2001 6:39 PM
Subject: Re: BGP/Community No-export
> no export works fine if you set it on the inbound
> routes / neighbor from another AS. Doing this you're
> AS will get routes from that AS but other AS's your
> connected to won't get those routes.
>
> --- Richard Foltz <globalfx@netropolis.net> wrote:
> > In order to not become a transit as you should only
> > allow your subnets to be
> > advertised, using a route map. Setting no export
> > just tells the next AS not
> > to send your router to any of thier connected AS's.
> >
> > Richard Foltz
> > Sr. Network Engineer
> > ZettaWorks LLP.
> > 3rd Attemp @ RTP 11/2-3
> >
> > ----- Original Message -----
> > From: "Jerry Hutcheson" <jhutches@cisco.com>
> > To: <ccielab@groupstudy.com>
> > Sent: Saturday, March 31, 2001 12:23 PM
> > Subject: BGP/Community No-export
> >
> >
> > > If you have two connections out to an the same
> > EBGP network and you want
> > to make sure you do not become a transit AS.
> > >
> > > I used the community no export command. Do you
> > have to do this only on one
> > side of your IBGP network or on both.?
> > >
> > > It seemed to work for me on one side.
> > >
> > > thanks,
> > >
> > > jerry
> > > **NOTE** All LAB SWAP messages should now be sent
> > to the
> > > LAB SWAP Message board on groupstudy.com.
> > **NOTE** All LAB SWAP messages should now be sent to
> > the
> > LAB SWAP Message board on groupstudy.com.
> >
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