[arin-ppml] ARIN-prop-154 Shared Space for IPv4 Address Extension (w/IETF considerations)

John Curran jcurran at arin.net
Wed Jul 6 01:10:35 EDT 2011

On Jul 5, 2011, at 8:24 PM, Benson Schliesser wrote:
> Given that IANA cannot necessarily comply (with an instruction from the IETF to assign large "specialised address blocks" at this time) it is clear that one of the RIRs must be involved in any such activity.  In the case of ARIN, would it be more appropriate for (1) a /10 to be "donated" to the IETF in support of such a reservation, or (2) a /10 to be returned to IANA with the explicit condition that it is applied to the IETF instruction?
> Option #2 seems like the only way to interact within the unmodified framework of RFC 2860 at this time, but seems to be more complicated by the lack of global policy etc.  Thus, would an RFC "updating RFC 2860" be adequate to pursue option #1?
> Other thoughts and/or advise would be appreciated, as well.

Since the ARIN community has already recommended use of address space
from our available pool for this purpose, it is reasonable for ARIN 
to make sure space remains available for as long as possible should 
the IETF approve such an reservation.  

If ARIN is informed by the IAB at any point that it is to make the 
reservation, we can do so immediately.  If the IETF directs the IANA 
to receive space from ARIN so the IANA may make the reservation, then 
we can release the space to the IANA for that purpose. I would consider 
either of the above outcomes to be implementation of ARIN 2011-5 (the 
intent of 2011-5 is quite clear; it has been the implementation that 
requires consultation to effect.)


John Curran
President and CEO

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