Using route maps in EIGRP

From: Filyurin, Yan (yan.filyurin@eds.com)
Date: Sun Jun 17 2007 - 19:54:14 ART


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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