From: Chris Lewis \(chrlewis\) (chrlewis@cisco.com)
Date: Mon Aug 22 2005 - 23:10:23 GMT-3
This works for me. The difference is you have to specify the IP address
of the interface on the gateway sending you the OSPF LSAs instead of the
router ID of the gateway.
Chris
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
gladston@br.ibm.com
Sent: Monday, August 22, 2005 1:37 PM
To: ccielab@groupstudy.com
Subject: Distribute-list gateway for OSPF
Can distribute-list filter based on gateway for OSPF?
Tests shows it can't.
Tests:
148.5.3.1 is filtered, don't matter if the gateway is 3.3.3.3 or
another.
3.3.3.3 is the router ID of R3.
R3 and R2 advertises net 148.5.3.1.
router ospf 1
distribute-list prefix Distribute-filter gateway Gateway in !
ip prefix-list Distribute-filter seq 5 deny 148.5.3.1/32 ip prefix-list
Distribute-filter seq 10 permit 0.0.0.0/0 le 32 !
ip prefix-list Gateway seq 5 permit 3.3.3.3/32
Rack2R5#sh ip prefix-list det Gateway
ip prefix-list Gateway:
count: 1, range entries: 0, sequences: 5 - 5, refcount: 3
seq 5 permit 3.3.3.3/32 (hit count: 0, refcount: 1)
Rack2R5#clear ip rou *
Rack2R5#sh ip prefix-list det Gateway
ip prefix-list Gateway:
count: 1, range entries: 0, sequences: 5 - 5, refcount: 3
seq 5 permit 3.3.3.3/32 (hit count: 0, refcount: 1)
Rack2R5#sh ip prefix-list det Distribute-filter ip prefix-list
Distribute-filter:
count: 2, range entries: 1, sequences: 5 - 10, refcount: 2
seq 5 deny 148.5.3.1/32 (hit count: 6, refcount: 1)
seq 10 permit 0.0.0.0/0 le 32 (hit count: 108, refcount: 1)
Rack2R5#clear ip rou *
Rack2R5#sh ip prefix-list det Distribute-filter ip prefix-list
Distribute-filter:
count: 2, range entries: 1, sequences: 5 - 10, refcount: 2
seq 5 deny 148.5.3.1/32 (hit count: 8, refcount: 1)
seq 10 permit 0.0.0.0/0 le 32 (hit count: 143, refcount: 1)
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