[arin-ppml] ARIN-prop-127: Shared Transition Space for IPv4 Address Extension

Martin Hannigan hannigan at gmail.com
Fri Jan 21 00:01:16 EST 2011


In the long run, it doesn't matter what gets carved out post
exhaustion or for this. All bets are off. I wouldn't worry about this
at all. Its effectively a non issue. Even 1/8 pollution will be a non



On 1/20/11, David Farmer <farmer at umn.edu> wrote:
> On 1/20/11 18:17 CST, Hannigan, Martin wrote:
>> On 1/20/11 7:00 PM, "David Farmer"<farmer at umn.edu>  wrote:
>> [ clip ]
>>> Why?  This close to run-out I find it very hard to justify allocating 4
>>> million virgin IPv4 addresses from a fresh IANA allocation to ARIN for
>>> this purpose.   However, recycling graciously returned IPv4 address for
>>> this purpose would be a little less distasteful in my opinion.
>>> Furthermore, ARIN has been and probably will be the only RIR that will
>>> see any sizable returned of Legacy address space; This fact provides a
>>> uniquely justified nexus for ARIN to consider this proposal instead of
>>> the other RIRs and even though the IETF failed to come to a consensus on
>>> the issue.
>> [ .. ]
>>> Therefore, I would like to see a recommendation to use or
>>> another returned Legacy block added to the rationale of this proposal.
>> You've got it sort-of backwards. The IANA blocks are polluted and get
>> worse
>> as they wind down. Being listed in bogons is not a guarantee of pristine
>> condition. 45/8 is probably better than anything that is left and equal to
>> whatever else is out there.
> OK, the virgins aren't so clean and white, I was more think of this from
> a policy prescriptive more than from how much junk and background
> radiation there is from the blocks in question.  However, maybe going
> with the least useful block might be the better option.
> It was the policy nexus that ARIN receiving most of the returned Legacy
> space that got me thinking.  Also, since people we talking about
> squatting on Legacy space, I thought maybe as a community we could agree
> which legacy space to squat on.
>> There is also global policy on deck that is attempting to deal with the
>> returned legacy address space issue, there's another effort underway now
>> to
>> supplant and possibly reconcile that same global proposal and finally,
>> there
>> is likely to be a regional policy directing ARIN as to how to handle
>> legacy
>> address space in the absence of global policy.
> I'd be pleasantly surprised to hear of progress, but unfortunately I'm
> not all that optimistic.
>> I do think that whatever is selected should be encoded in the proposal,
>> but
>> I think it's premature at this point.
> I agree specifying something as specific as a particular block probably
> isn't right way, especially in the policy text itself.  But, maybe
> providing some suggestions in the rationale like "should allocate from a
> returned Legacy address space" or "should allocate the least useful
> blocks available" wouldn't be completely out of line either.  So I
> agree, calling out is probably way to specific.
> --
> ===============================================
> David Farmer               Email:farmer at umn.edu
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