From: Aaron K. Dixon (adixon@xxxxxxxxxxxxxxxxx)
Date: Fri Jul 21 2000 - 23:13:23 GMT-3
I haven't used prefix-based filtering before, but I just wanted to note that
not all filters will work inbound. I will have to try using the
prefix-based filtering in my lab to get familiar with it. Thanks for the
information.
Regards,
Aaron K. Dixon
-----Original Message-----
From: Mike Hess [mailto:mahess@home.com]
Sent: Friday, July 21, 2000 9:00 PM
To: Aaron K. Dixon; ccielab@groupstudy.com
Subject: RE: BGP Filtering
This type of filtering (called prefix-based filtering) was incorporated into
the IOS in 11.2. It allows you to determine the level of summarization you
want to see.
Mike
> -----Original Message-----
> From: Aaron K. Dixon [mailto:adixon@smc.omnes.slb.com]
> Sent: Friday, July 21, 2000 10:02 PM
> To: Mike Hess; ccielab@groupstudy.com
> Subject: RE: BGP Filtering
>
>
> Be cautions when using BGP filters with ip addresses. Route maps
> cannot be
> used to filter incoming updates based on an IP address. You will need to
> use a BGP regular expression.
>
> Regards,
> Aaron K. Dixon
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Mike Hess
> Sent: Friday, July 21, 2000 8:34 PM
> To: ccielab@groupstudy.com
> Subject: RE: BGP Filtering
>
>
> You could filter on the subnet length (I know, this is kind of like ip
> address)
>
> For instance, say you only wanted to accept routes with 24 bit
> subnet masks:
>
> route-map infilter permit 10
> match ip address 100
>
> access-list 100 permit ip an host 255.255.255.0
>
>
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > Bob Woodson
> > Sent: Friday, July 21, 2000 1:18 PM
> > To: ccielab@groupstudy.com
> > Subject: BGP Filtering
> >
> >
> > What other methods of bgp filtering are available to
> > filter a route to or from an EBGP peer "other than by
> > ip address"? Let's say I wanted to filter the route
> > to or from 139.50.5.0/24. Can anybody provide any
> > examples?
> >
> >
> >
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