We encountered a strange bug in systemd-networkd that causes some troubles on systems which are using DHCP to configure the network interfaces. Because of unknown reasons the systemd-networkd service may crash, e.g. when a new network configuration is applied.
You can workaround by rebooting the system or by running
systemctl restart systemd-networkd.serviceseveral times until
systemctl status systemd-networkd.servicereports the service is running. You can alternatively run the command
omv-salt deploy run systemd-networkdIf everything fails, use static IP addresses until the bug has been fixed upstream by the Debian project.
The bug has been reported upstream at https://github.com/systemd/systemd/issues/27854 and https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1036949.