Re: IPv4 flag day

[Lu Heng via NANOG <nanog () lists nanog org>]

Hi,

I recently wrote a piece on IPv6 adoption:

https://heng.lu/on-why-ipv6-will-never-happen/

One observation is that IPv4 scarcity remains one of the few genuine
scarcity mechanisms in the Internet industry. From an economic perspective,
many stakeholders have incentives to continue operating within that
framework rather than accelerate a transition that would largely eliminate
it.

Whether one agrees or disagrees with that conclusion, I would be interested
in hearing the community's views on the economic incentives surrounding
IPv6 deployment and what, if anything, could realistically change them.

On Tue, 16 Jun 2026 at 15:06, Saku Ytti via NANOG <nanog () lists nanog org>
wrote:

> On Tue, 16 Jun 2026 at 09:50, Bill Woodcock <woody () pch net> wrote:
>
> > Why not filter at internet-AS edges much sooner than that?
>
> The idea is very poorly marketable, and short time frames would call
> for more objection.
>
> If it were up to me, 5-10y is enough. But I fear it'll never happen,
> IPv4 calcifies and those who come after us will curse us for forcing
> this future on them.
>
>
> --
>   ++ytti
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-- 
--
Kind regards.
Lu
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