ARIN-PPML Message

[ppml] 2005-1 status

RFC 3177 does not set IP address policy for ARIN region.  The ARIN community
of interest does, of which IETF is an interested party.

Bill Darte
ARIN AC
 
> > Nor are we supposed to be doing our best to waste IPv6 space by 
> > holding
> to 
> > an unstated "/48 per location" policy when a typical location only 
> > needs
> one 
> > or two /64s.
> 
> In fact you are wrong. According to RFC 3177 
> http://www.rfc-editor.org/rfc/rfc3177.txt
> we are supposed to be giving a /48 unless we are absolutely 
> certain that the site will never ever need more than one 
> subnet. Therefore, if the site needs 2 subnets today, then 
> they qualify for a /48 with no questions asked. In fact, if 
> they might add a second subnet in the next 10 years, they 
> also qualify for a /48 today.
> 
> Here is a quote from RFC 3177:
> 4. Conservation of Address Space
> 
>    The question naturally arises whether giving a /48 to every
>    subscriber represents a profligate waste of address space. 
>  Objective
>    analysis shows that this is not the case.  A /48 prefix 
> under the 001
>    Global Unicast Address prefix contains 45 variable bits.  That is,
>    the number of available prefixes is 2 to the power 45 or about 35
>    trillion (35,184,372,088,832).
> 
> > If an applicant came back with reasonable justification why 
> their site
> (i.e. 
> > org) needed more than a /48 total, even to the level of a /48 per
> location, 
> > I'm confident ARIN would go along with it.  There is nothing in the
> proposal 
> > that prohibits such if it's justified.
> 
> Justification means different things in the IPv4 world and 
> the IPv6 world. We need to be careful not to confuse the two.
> 
> --Michael Dillon
> 
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