Enabling VLANs
By default VLANs are disabled in the virtual network switch.
First click your node, then navigate to System > Network, and double click your Linux Bridge.
Once double clicked, you'll be presented by a window where you can check VLAN aware.
Check this checkbox to enable VLANs, then confirm by clicking OK.
Now reboot your node.
Great, you can now configure VLANs within virtual machine network devices.
Notes
It's possible to apply this configuration without restart by clicking Apply Configuration, ifupdown2 has to be installed, which it is by default when installed from ISO.
