/127 between routers?

[Andrew Alston]

We use /127s all over the place on point to point links with no issues
(We went this route after considering what was said in the latest link
Janos posted below)

Haven't really found any drawbacks with this yet

Andrew


-----Original Message-----
From: ipv6-ops-bounces+aa=tenet.ac.za at lists.cluenet.de
[mailto:ipv6-ops-bounces+aa=tenet.ac.za at lists.cluenet.de] On Behalf Of
Mohacsi Janos
Sent: Tuesday, January 05, 2010 4:33 PM
To: Xavier Beaudouin
Cc: ipv6-ops at lists.cluenet.de
Subject: Re: /127 between routers?

Also:
http://www.ietf.org/id/draft-kohno-ipv6-prefixlen-p2p-00.txt


Janos Mohacsi
Head of HBONE+ project
Network Engineer, Deputy Director of Network Planning and Projects
NIIF/HUNGARNET, HUNGARY Key 70EF9882: DEC2 C685 1ED4 C95A 145F  4300
6F64 7B00 70EF 9882

On Tue, 5 Jan 2010, Mohacsi Janos wrote:

> Hi,
>
> 	Have a look at RFC 3627:
> http://tools.ietf.org/html/rfc3627
> "Use of /127 Prefix Length Between Routers Considered Harmful"
>
> Janos Mohacsi
> Head of HBONE+ project
> Network Engineer, Deputy Director of Network Planning and Projects 
> NIIF/HUNGARNET, HUNGARY Key 70EF9882: DEC2 C685 1ED4 C95A 145F  4300 
> 6F64 7B00 70EF 9882
>
> On Tue, 5 Jan 2010, Xavier Beaudouin wrote:
>
>> Hi there...
>> 
>> I can't figure if there is any drawback to use a /64 and subnet it 
>> into
>> /127 only for point to point connections between routers.
>> 
>> Seems that OpenBSD doesn't forbid that, but I wanted to know if there

>> is any drawback in this way of connection each routers in such way.
>> 
>> When I was working on 2000 and have 6bone stuff and was pTLA, we 
>> cannot do that, now KAME stack on OpenBSD allow that.
>> 
>> Any good practices in this domain ?
>> 
>> Xavier
>> 
>> --
>> Association KAZAR - http://kazar.net/ Non profit hosting for anybody 
>> in France
>> 
>