From: Shaun Nicholson (Shaun.Nicholson@xxxxxx)
Date: Mon Jan 22 2001 - 13:29:37 GMT-3
On another note remember with OSPF distribute list will block routes but not LS
A's so you would need to put a dist list on every router in your AS to stop an
OSPF route from being propegated unless you used a route map of course.
I know its off topic but needs to be pointed out
Good Luck
Shaun Nicholson CCIE 6705
Lead Network Engineer
Kaiser Permanente
Silver Spring Data Center
301 680 1462
chuck@cl.cncdsl.com on 01/20/2001 10:59:00 AM
To: ccielab@groupstudy.com@Internet
cc: (bcc: Shaun Nicholson/MD/KAIPERM)
Subject: Distribute-List vs Route-Map issues
Two routing domains. Single redistribution point. Requirement for
summarization out of each domain into the other.
EIGRP-----ASBR-----OSPF
182.18.0.0 172.16.0.0
ASBR configs ( partial )
Router eigrp 200
Netw 182.18.0.0
Redist ospf 300 metric etc
Router opsf 300
Netw ( several statements )
Redist eigrp 200 metric etc subnets
Without any additional configuration, everything behaves as I expect. All
routes are appearing in each domain
To summarize the eigrp routes, I add the statement summary-address
182.18.0.0 255.255.0.0
Again, behaviour is as I expect. The summary appears throughout the OSPF
domain as it should. And it is leaked back into the eigrp domain, which I
expect because there is no filtering.
Now here is where it gets frustrating.
Access-list 1 permit 172.16.0.0 0.0.255.255
Distribute-list 1 out eigrp 200 ( under the ospf process )
This does not work. the 182.18.0.0 summary address appears throughout the
eigrp domain, after clear ip route * everyplace I can think of. It does not
appear to be artifact from earlier configurations. Oh- also the summary
route disappears f the ospf domain as well.
If I take that same access list and use it in a route map
Route-map ospf-eig permit 10
Match ip address 1
And then make the appropriate modifications under the ospf process, the
summary disappears. ( there were a couple of variations of access-lists and
distribute-lists I tried, btw, both in eigrp and ospf. Similar results )
Anyone know what gives?
I see from book examples that folks tend not to use distribute-list
options. I could not find any caveats in the documentation, but you know how
that goes. ;->
Chuck
http://www.1112.net/lastpage.html
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