RE: IPv6 Rip Distribute list

From: Scott Morris (swm@emanon.com)
Date: Thu Aug 18 2005 - 08:20:14 GMT-3


Just like with IP prefix-lists, you need to look at what is being matched.

Without an "le" or "ge" addition, you are matching only those specific
routes.

So on your ::/0 route, you probably want to put "le 128" or whatever measure
you desire.

HTH,

Scott

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Rohan Grover (rohang)
Sent: Thursday, August 18, 2005 3:10 AM
To: ccielab@groupstudy.com
Subject: IPv6 Rip Distribute list

Hi,

I have configured IPv6 RIP on 2 routers R1 and R2. I now want to filter a
certain prefix 3001:5::/64 and permit all others on R2.

To do this I created a ipv6 prefix list on R2

ipv6 prefix-list ROHAN seq 5 deny 3001:5::/64
ipv6 prefix-list ROHAN seq 10 permit ::/0

I applied this list to the ipv6 router rip

ipv6 router rip RIPA
  distribute-list prefix-list ROHAN in

But I see that only a default route ::/0 sent by R1 is being installed in
the R2 ipv6 routing table. Other prefixes being advertised by R1 like
2001:1::/64, 2001:2::/64 are all being rejected by the filer as per the
debugs

00:35:14: RIPng: Input filter rejects 2001:1::/64
00:35:14: RIPng: Input filter rejects 2001:2::/64

Why is this happening? Is there a different logic to be used for distribute
list filtering for ipv6?

Any help will be much appreciated.

Thanks
Rohan



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