How to configure systemd to bring up a virtual network interface from a vlan trunk.

Prerequisite

• Debian 9 (aka Stretch) or probably most of the systemd installations.
• Knowledge of how to manage network setup with systemd.
• No other managers for the network, like network-manager, ifup/down etc.
• Trunked connection to …

Examples of systemd network configurations.

These are some collection of systemd network configuration. It does not require anything installed but systemd, not even ifupdown.

note: Debian 9 aka Stretch

Simple DHCP ethernet setup

Interface: eth0, file name is not important, but it must have the .network suffix.

/etc/systemd/network …