[arin-ppml] Update on ARIN Policy 2025-8 Reserve 4.10 Space for In-Region Use

[William Herrin]

On Sun, Dec 14, 2025 at 10:34 AM David Farmer via ARIN-PPML
<arin-ppml at arin.net> wrote:
> 1. Someone with an ARIN IPv6 allocation that they are using globally, according to section 9, Out of Region Use, should also be able to use their 4.10 allocation to provide NAT64 for their IPv6 allocation. The current language prevents this because it involves a potential IPv6 deployment outside the ARIN service area.
>
> I recommend adding a new bullet point to section 4.10, as illustrated below.
>
> Allocations made under this policy must be used only to support IPv6 allocations made by ARIN.
> Further, the use of the allocation must be concurrent and congruent with these IPv6 allocations.

> This bullet aims to allow #1 and disallow #2 and #3 from the list above.

Hi David,

Did you intend for #1 to allow employing the 4.10 IPv4 space at
locations outside the ARIN region if ARIN-allocated IPv6 addresses are
being used there? So that as long as the IPv6 addresses are from ARIN
they can get 4.10 space for as many GLOBAL locations as a registrant
wants?

To the best of my understanding, ARIN doesn't have much in the way of
proscriptions against using ARIN IPv6 allocations outside the region.
>From what I read in section 9, they basically have to have a legal
existence in the ARIN region and deploy at least a /44 there.

Regards,
Bill Herrin


-- 
For hire. https://bill.herrin.us/resume/