[47554] in North American Network Operators' Group
Re: IP renumbering timeframe
daemon@ATHENA.MIT.EDU (Stephen Griffin)
Mon May 6 10:07:17 2002
Message-Id: <200205061404.KAA18112@elektra.ultra.net>
In-Reply-To: <Pine.LNX.4.21.0205060819100.30894-100000@cpu1693.adsl.bellglobal.com> from Ralph Doncaster at "May 6, 2002 08:21:23 am"
To: ralph@istop.com (Ralph Doncaster)
Date: Mon, 6 May 2002 10:04:03 -0400 (EDT)
From: Stephen Griffin <stephen.griffin@rcn.com>
Cc: nanog@merit.edu
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In the referenced message, Ralph Doncaster said:
>
> On Mon, 6 May 2002, Forrest W. Christian wrote:
>
> > On Mon, 6 May 2002, Ralph Doncaster wrote:
> >
> > > What is the generally accpted timeframe for renumbering? My reading of
> > > ARIN policy would seem to imply at least 30 days.
> [...]
> > The bottom line is the space is theirs and they can do whatever they want
> > with it.
>
> Is that true? I thought the space belongs to ARIN, and they loan it to
> certain parties. Those parties can use the IPs in accordance with ARIN
> rules.
>
> -Ralph
s/ARIN/IANA/
but yes, registries allocate based upon rules (most ISPs are registries).
In theory, IANA could revoke 192.0.0.0/8, forcing the RiR's to revoke the
space, forcing the LiR's to revoke the space, and so on until Joe Blow's
/29 gets revoked.
In practice, this has not to my knowledge ever occured. If we ever do
reach a point where exhaustion of IPv4 is imminent, I would expect this
to occur. Presently, there is a voluntary request for unused address
space, but as long as it is voluntary, I don't expect there being
any meaningful return of unused space.
