From: sliu@xxxxxxxxx
Date: Fri Apr 06 2001 - 19:58:06 GMT-3
The OSPF distribute-list out is only used on ASBR to filter routes that are
being redistributed out.
My approach would still be turning on the debug to see where and why the
route is actually being filtered...
- Sean
CCNP and others...
xander
<xander@adt.r To: Jerry Hutcheson <jhutches@cisc
o.com>
u> cc: ccielab@groupstudy.com
Sent by: Subject: Re: OSPF Distribute-list
nobody@groups
tudy.com
04/06/2001
02:22 PM
Please
respond to
xander
Hello Jerry,
Please send complete topology and ospf config for your lab.
But I think guess without them.
It seems R1 is DR and R2 is BDR or OTHER ospf router.
So, LSA about your network(s) are collected by DR and then flooded to the
other routers. So, if you filter this particular network from DR, all
other routers in this network do not know about it(them) anyway.
The solution is to use distribute-list 1 out of S0 interface on DR router.
JH> I was under the impression that when doing a distribute list in on an
OSPF router with a deny access list that the router would remove the
network from its own route table but it would still be
JH> available on the downstream neighbors routing table.
JH> However when I did this it was removed from both IP routing tables.
Does anyone have any suggestions?
JH> R1
JH> Router ospf 100
JH> distribute-list 1 in s0/0
JH> access-list 1 deny 151.100.2.2 !!! route is coming from upstream of R1
and is going downstream to R2
JH> access-list 1 permit any
JH> R2
JH> !no access lists
JH> Route disappears from both routing tables.
JH> Jerry
-- WBW, xander mailto:xander@adt.ru CCNA, CCNP+VoiceAccess, CCIE very soon :-)...
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