Re: IPv4 flag day

[William Herrin via NANOG <nanog () lists nanog org>]

On Tue, Jun 16, 2026 at 12:21 PM David Prall via NANOG
<nanog () lists nanog org> wrote:
> Soon enough all the client computers will have CLAT, so the CPE won't
> require it leaving the CPE IPv6-Only. IPv6-Mostly is being widely
> evangelized, with DHCP Option 108. The only client without CLAT widely
> available today is Windows, and it is out in Insider Preview with

The _legacy_ systems will be the last ones using IPv4. Which means no
updates. Which means no CLAT software. If you want CLAT in those
configurations, it'll have to be external. In the CPE router.

Regards,
Bill Herrin

-- 
For hire. https://bill.herrin.us/resume/
_______________________________________________
NANOG mailing list 
https://lists.nanog.org/archives/list/nanog () lists nanog org/message/CLNP2IMJRDSJFI5JTGBWXQZPMA25ROP4/