Re: sudo sysctl -w net.ipv6.conf.default.use_tempaddr=2

[Nicolas George <george@nsup.org>]

Richmond (HE12025-12-21):
> Yes it worked, thanks. How puzzling. So existing interfaces don't exist
> at boot time I guess.

“At boot time” is not an instant:

Dec 21 10:25:35 aimlin kernel: Linux version 6.17.12+deb14-amd64
…
Dec 21 10:25:41 aimlin systemd[1]: Started xdm.service - X-Window Display Manager.

A lot happens during these ~6 seconds, including:

Dec 21 10:25:36 aimlin kernel: iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 3160

… and:

Dec 21 10:25:35 aimlin systemd[1]: Starting systemd-sysctl.service - Apply Kernel Variables...

Also…

>>> Whereas the subject line works after wifi is switched off and on again.

… interfaces do not exist when they are turned off. And when they are
turned on back again, they are a not related to their previous state.

Regards,

-- 
  Nicolas George