Pierre Bourdon 4ae5da5394 nixos/network-interfaces-systemd: do not ignore /0 gateway routes ...

While it might seem odd, 0.0.0.0/0 or ::/0 gateways are valid and
commonly used on point-to-point links (e.g. a wireguard tunnel) to
indicate that all traffic needs to be sent to a given interface.

systemd-networkd actually documents this as a valid configuration in its
man pages [1].

Tested to do the right thing in one of my NixOS containers using
a Wireguard tunnel as its default route.

[1] https://www.freedesktop.org/software/systemd/man/systemd.network.html#DefaultRouteOnDevice=

2022-08-19 02:25:41 +02:00

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