The default hook systemd uses to wait for network is documented in https://www.freedesktop.org/software/systemd/man/latest/systemd-networkd-wait-online.service.

The default hook systemd uses to wait for network is documented in https://www.freedesktop.org/software/systemd/man/latest/systemd-networkd-wait-online.service.html https://www.freedesktop.org/software/systemd/man/latest/syst... It has the slightly odd behavior with trying to get all configured links up. This can lead to some unexpected behavior when there's more than one. But yea, the upstream stance is essentially "don't rely on network to be up before you start. That's bad software. You have to deal with network going down and back up in practice either way." Which is often not super useful.