[ppml] 2005-1 status
billd at cait.wustl.edu
Tue Feb 7 08:32:32 EST 2006
RFC 3177 does not set IP address policy for ARIN region. The ARIN community
of interest does, of which IETF is an interested party.
> > Nor are we supposed to be doing our best to waste IPv6 space by
> > holding
> > an unstated "/48 per location" policy when a typical location only
> > needs
> > or two /64s.
> In fact you are wrong. According to RFC 3177
> 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.
> 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
> > org) needed more than a /48 total, even to the level of a /48 per
> > I'm confident ARIN would go along with it. There is nothing in the
> > 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
> PPML mailing list
> PPML at arin.net
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