North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: IP renumbering timeframe
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.
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