RE: IPv6 Rip Distribute list

From: Scott Morris (swm@emanon.com)
Date: Thu Aug 18 2005 - 08:25:44 GMT-3


I should re-phrase that. RIPng doesn't have it, OSPFv3 does. :)

(need caffeine, fingers got ahead of the brain)

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Rohan Grover (rohang)
Sent: Thursday, August 18, 2005 3:24 AM
To: ccielab@groupstudy.com
Subject: RE: IPv6 Rip Distribute list

I got the problem, hate it when this happens! I send a mail to groupstudy
and 5 mins later I figure out my brain had stopped working.
:-(

The prefix list is wrong. It should be

ipv6 prefix-list ROHAN seq 5 deny 3001:5::/64
ipv6 prefix-list ROHAN seq 10 permit ::/0 le 128

On a related note...since in IPv6 routing protocols are configured directly
under interfaces, the concept of passive interfaces no longer exists right?

So if I want to advertise a loopback ipv6 int in RIPv6, I would configure
'ipv6 router rip <name>' under Loopback and things work great, but then rip
updates will be sent out on L0 going to Null..this is not really desirable
right? Anything to prevent this?

Thanks
Rohan

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Rohan Grover (rohang)
Sent: Thursday, August 18, 2005 12:40 PM
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



This archive was generated by hypermail 2.1.4 : Sun Sep 04 2005 - 17:01:19 GMT-3