From: Brian S turner (brian@xxxxxxxxxxxxxxxxx)
Date: Thu Jul 20 2000 - 10:37:50 GMT-3
Aren't Tags for Internal to router use only?
I didn't think the TAG would/could be
transmitted to another router. With BGP I
know you can use Community Strings and
send community to tag routes. I don't
have much experience with the tagging of
routes, but I wouldn't imagine that the
people who wrote rip or ospf, consulted with
cisco to allow them to tag the routes in their
packet headers.
Brian Turner
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Walid Fahme
Sent: Thursday, July 20, 2000 12:22 AM
To: ccielab@groupstudy.com
Subject: Route-Maps & Tags
What is the best way to filter mutual redistributions other that route-maps
with addresses or distribute-lists ?
I have been trying to use Route-maps with Tags when doing Mutual
redistribution between two routing protocols, in a way that, I tag
the redistribed routes from OSPF to RIP with 111, and RIP to OSPFwith 222,
so that when I redistribute at another router, I use route-map to filter
the 111 from RIP to OSPF and filter 222 from OSPF to RIP.
I configured as follows, and it never worked: (when I list the route-maps
# of matches = 0)
router ospf 1
redistribute rip subnets route-map rip-to-ospf
!
router rip
redistribute ospf 1 route-map ospf-to-rip
!
route map ospf-to-rip deny 10
match tag 222
route map ospf-to-rip permit 20
set tag 111
!
route map rip-to-ospf deny 10
match tag 111
route map rip-to-ospf permit 20
set tag 222
I assume when there is no match statement => match all
when there is no set statement => just permit don't set
anything
Can anyone advise please. Is there any limitation to these route-maps
with tags & why is tagging possible with the redistribute command
under an ospf router, but not available with the same command under RIP
EIGRP and IGRP.
Thanks
Walid.
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