US Federal Government was supposed to be Dual-Stacked years ago and in fact should be running IPv6-Only already and already planned for replacement of anything they couldn't convert to IPv6-Only. So if you get brought before congress you can ask them why they had issues getting to your IPv6-Only service from their IPv6-Only network. It might have been caused by Cogent and Hurricane Electric, without finger pointing. David -- https://dprall.net On 6/16/2026 1:47 PM, Jeff Shultz via NANOG wrote:
Only if you like being called before US congressional inquiries (as well as those from any Government run or regulated PTT)...
On Tue, Jun 16, 2026 at 8:24 AM Hrant Dadivanyan via NANOG < nanog@lists.nanog.org> wrote:
There were IPv6 Day and IPv6 Launch Day in 2011 and 2012. Why not some major players agree to switch ipv4 off for a day? Sure, it would be a mess, but wouldn't it be a useful one?
-- Hrant Dadivanyan - hrant(at)dadivanyan.net /* "Feci quod potui, faciant meliora potentes." */