# Pastebin UAI0e7IR
auto ens3
iface ens3 inet static
    address 176.9.X.X
    gateway 176.9.X.Y
    netmask 255.255.255.255

# control-alias ens3
iface ens3 inet6 static6
    address 2a01::XX
    gateway 2a01::XY
    netmask 64