[arin-ppml] the bad 240/4 idea, was Solving the squatting problem

Paul Wilson pwilson at apnic.net
Sat May 18 01:26:30 EDT 2019

I have also felt an obligation to do what’s possible to satisfy APNIC members’ stated need for IPv4 addressing options.

Here’s an effort, from 10 years back, which was regarded as impossible at the time:


What seemed impossible 10 years ago may not have been, and maybe we’ll say the same in another 10.


Paul Wilson, Director-General, APNIC dg at apnic.net
http://www.apnic.net @apnicdg

On 18 May 2019, at 3:49, David Farmer wrote:

Personally, I'm mostly neutral on the idea, it's not a problem I have. We have deployed IPv6, and the 10 net and other specified private or non-unique use block are sufficient for our needs for the foreseeable future. At least until all you IPv4-Only fuddy-duddies retire or die off. If you are a believer in IPv4-Only, I hope your 401K does really well so you can retire early and make way for the IPv6-Only generation.

However, as an ARIN AC member, one of my roles is to try to help the community to fulfill the community's Internet number resource policy objectives. The only way forward for the allocation of 240/4 from an RIR policy perspective I could think of was a global policy requesting IANA and the IETF to allocate 240/4. Further, if I wasn't clear, I'm very dubious that there is a consensus for that across the 5 RIRs need for such a global policy.


On Fri, May 17, 2019 at 10:54 AM John Levine <johnl at iecc.com<mailto:johnl at iecc.com>> wrote:
In article <CAN-Dau0EBfSitNndJV2C9Dau7uWSgUKSm9ZyvQ89iUzp8Jbc-w at mail.gmail.com<mailto:CAN-Dau0EBfSitNndJV2C9Dau7uWSgUKSm9ZyvQ89iUzp8Jbc-w at mail.gmail.com>> you write:
>I suppose we could try a global policy that would have to pass in all 5
>RIRs requesting IANA and the IETF to allocate 240/4 for Private Use. If
>that were to actually occur, it seems difficult for the IETF to ignore such
>a request.

I'm not the IETF but I am pretty sure we would want to see some
evidence that if it were allocated, it would interoperate.  Good luck
with that.

If you want to use 240/4 for truly private use on your own network, go
ahead.  Nobody will ever know.

David Farmer               Email:farmer at umn.edu<mailto:Email%3Afarmer at umn.edu>
Networking & Telecommunication Services
Office of Information Technology
University of Minnesota
2218 University Ave SE        Phone: 612-626-0815
Minneapolis, MN 55414-3029   Cell: 612-812-9952

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