From: Ben (bmunyao@gmail.com)
Date: Mon Jun 18 2007 - 14:36:44 ART
Tarun
"remember ACLs will not match subnet mask."
Correct me if I'm off track but I was under the impression an ACL can also
match a subnet mask as follow:
access-list 100 permit ip host 150.4.5.0 host 255.255.255.0
I haven't tested it in a lab yet, so I'm still unsure if it works. I'd sure
appreciate any input on this ACL usage.
Ben
On 6/18/07, Tarun Pahuja <pahujat@gmail.com> wrote:
>
> Yan,
> You are right about the use to route-map for advanced filtering. I
> am not aware of any limitations of distributing routes in and out of eigrp
> in terms of routing protocols. Remember, to specify the metric when
> redistributing in eigrp as their is no default metric, also use
> prefix-list
> in place of ACLs for better control, remember ACLs will not match subnet
> mask.
>
> For your second question, It is more useful in many cases to configure the
> route map that includes matching the route type based on the source
> protocol
> and AS using the distribute-list command for EIGRP.
>
> In the following example, the source protocol is specified as Border
> Gateway
> Protocol (BGP) and the AS number is 2, which permits external EIGRP routes
> of BGP:
>
> match source-protocol bgp 2
>
> HTH,
> Tarun
>
>
> On 6/17/07, Filyurin, Yan <yan.filyurin@eds.com> wrote:
> >
> > Hello Groupstudy. Recently I've reading up EIGRP support for route maps
> > and the way they explain it is that it almost works like a distribute
> > list where you can do advanced matching on incoming routes. However
> > according to some playing around and documentation, use of route-map in
> > a distribute list is only supported with OSPF. So here I was reading
> > this URL:
> >
> > http://www.cisco.com/en/US/products/sw/iosswrel/ps5207/products_feature_
> > guide09186a0080220721.html
> >
> > And the part that confused me the most was this
> >
> > "
> > The EIGRP Route Map Support feature enables Enhanced Interior Gateway
> > Routing Protocol (EIGRP) to interoperate with other protocols by
> > filtering inbound and outbound traffic based on complex route map
> > options.
> > "
> >
> > Am I just confused by the description and that URL gives nothing more
> > than ability to redistribute the routes better by matching on some of
> > the parameters of other protocols, or is actual route filtering
> > involved. And in case of the second, how would it even know which
> > source protocol it originally came from. Sounds very logical, so just
> > wanted to do a sanity check.
> >
> > Thank you
> >
> > Yan
> >
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-- Benedict Munyao Dimension Data
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