[ppml] Policy Proposal: IPv4 Soft Landing

[John Paul Morrison]

It seems obvious, but maybe it shouldn't be an implicit assumption.

Strictly speaking, IPv4 doesn't have to be replaced. It could run in 
parallel with IPv6 for ages. Maybe it will slowly wither away or maybe 
it'll be hacked to keep working.

If ARIN intends to replace IPv4, it should say so in a policy. (If it's 
not, that's another matter). Eventually this will have to drive 
requirements, including dates to stop processing requests for new IPv4 
addresses, administration, transfers etc.  It may seem arbitrary to set 
a deadline, but a lot of software related decisions are like that. 
Microsoft could continue to support Windows 95 or legacy products 
forever, it's "arbitrary" in a sense that they could in theory support 
those systems forever, but they have business reasons for not doing so.

If you're an ISP, you know from Cisco or Juniper when your router is 
end-of-life'd. You can buy support on it for a several years later 
(often at increasingly silly costs). At some point there's no support, 
no new warranties or software available for that hardware.
The point is you know well in advance, you can stockpile spares and keep 
running or replace with new gear.

Is ARIN going to support IPv4 forever? At some point they can not give 
out IP addresses, but they can deal with the transfers and other 
administration, collect (increasingly steep) fees and maybe delve into 
reclaiming unused address space etc. 

Is this the consensus?


G. Waleed Kavalec wrote:
> ISP:   Hey ARIN I need some new numbers.
>
> ARIN:  Sorry ISP, we haven't REPLACED our stock.
>
>
> Like I said, it's implied.
>
>
> -----Original Message-----
> From: Randy Bush [mailto:randy at psg.com]
> Sent: Monday, May 14, 2007 2:35 PM
> To: G. Waleed Kavalec
> Cc: ppml at arin.net
> Subject: Re: [ppml] Policy Proposal: IPv4 Soft Landing
>
>
>   
>>> If ARIN is going to do something to replace IPv4 with IPv6
>>>       
>> this is in arin's charter?
>> Implicit, yes.  
>> No point being a registry of internet numbers
>> if you don't have any more internet number.
>>     
>
> where does it say REPLACE ipv4, please?
>
> randy
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