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

David Farmer farmer at umn.edu
Fri May 17 16:36:57 EDT 2019


Isn't that 224/8

https://www.iana.org/assignments/multicast-addresses/multicast-addresses.xhtml

On Fri, May 17, 2019 at 3:34 PM william manning <chinese.apricot at gmail.com>
wrote:

> i have this recurrent thought that one of those /8's  (240.0.0.0/8 if
> memory serves) was in use as the registry for well known multicast
> assignments.  And thats not the most difficult problem to overcome (that
> registry was managed by IANA once, maybe the IEtF these days).
>
> /Wm
>
> On Fri, May 17, 2019 at 9:50 AM David Farmer <farmer at umn.edu> 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.
>>
>> Thanks.
>>
>> On Fri, May 17, 2019 at 10:54 AM John Levine <johnl at iecc.com> wrote:
>>
>>> In article <
>>> 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
>> 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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>

-- 
===============================================
David Farmer               Email:farmer 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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