# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eno1
iface eno1 inet dhcp

auto eno1.8
iface eth1.8 inet static
    address 192.168.8.21/24
    netmask 255.255.255.0
    vlan-raw-device eno1

auto eno1.13
iface eno1.13 inet static
    address 192.168.13.21/24
    netmask 255.255.255.0
    vlan-raw-device eno1