Re: IPv4 flag day

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

On Thu, Jun 18, 2026 at 8:14 AM Marco Moock via NANOG
<nanog () lists nanog org> wrote:
> Am 18.06.26 um 05:16 schrieb Arie Vayner:
> > The SIP and Gaming use cases are a bit of a strawman argument for this
>
> SIP does not work properly with NAT.

SIP clients work just fine with NAT so long as the SIP registration
timer is shorter than the NAT UDP state timeout.

SIP servers are another matter, but as I might have mentioned I try
not to mix servers and NAT. That's just not a good NAT use case.

Regards,
Bill Herrin


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