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   Christian Huitema (huitema@social.secret-wg.org)'s status on Saturday, 19-Jul-2025 07:38:07 JST Christian Huitema

   in reply to

   @xtaran @karotte @casandro @GossiTheDog

   That's an old one! We came up with it for IPv6 when I was working at Microsoft. I think it was introduced in Windows XP SP1. We were worried that typing addresses like 2001:2:3::abcd was not going to work well in a variety of user interfaces, hence the "2001-2-3--abcd.ipv6-literal.net" hack. One of the team members (maybe me, not sure now) registered it on a personal account, and then transferred ownership to Microsoft before shipping.