auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
    address 171.22.67.17/25
    gateway 171.22.67.1
    dns-nameservers 185.40.96.96 185.40.96.97
auto eth0
iface eth0 inet6 static
    address 2a04:8400:2:1::20f/64
    gateway 2a04:8400:2:1::1
    dns-nameservers 2a04:8400::a 2a04:8400::b