apt-get install vlan
modprobe 8021q && echo "8021q" >> /etc/modules

EXEMPLE INTERFACES POUR UN VLAN 100

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto enp0s25
iface enp0s25 inet static
 address 0.0.0.0

vlan-raw-device enp0s25

auto enp0s25.100
iface enp0s25.100 inet static
 address 192.168.100.5/29
 gateway 192.168.100.1