[arin-ppml] IPv6 policy: limitations on registrants?

[William Herrin]

On Sun, Jun 28, 2026 at 7:33 PM John W. O'Brien <obrienjw at upenn.edu> wrote:
> I am in favor of resource policy that makes GUA more attractive than
> ULA, or, in the absence of such policy, avoiding resource policy that
> makes GUA less attractive than ULA, all else being equal.

Thanks John,

Follwup question, and this is for everybody not just you: what should
the off-internet qualifications be?

Current qualifications for ARIN to assign an IPv6 /48 block for
off-Internet use is roughly:

1. Have 2000 hosts, or
2. Submit a network plan explaining why ULA addresses are not good enough.

More than a single /48 requires multiple sites and the above.

There's more nuance and some corner cases (see NRPM 6.5.8), but that's
the general shape of it.

Is that about right for what the policy should be? Should the rules be
more restrictive? Less? Where would you set them and why?

Regards,
Bill Herrin