### Hetzner Online AG - installimage
# Loopback device:
auto lo
iface lo inet loopback

# device: eth0
auto  eth0
iface eth0 inet static
  address   1.2.117.15
  broadcast 1.2.117.63
  netmask   255.255.255.192
  gateway   1.2.117.1

# default route to access subnet
up route add -net 1.2.117.0 netmask 255.255.255.192 gw 1.2.117.1 eth0

iface eth0:1 inet static
  address 1.2.170.96
  netmask 255.255.255.224

iface eth0:2 inet static
  address 1.2.170.97
  netmask 255.255.255.224

...

iface eth0:31 inet static
  address 1.2.170.126
  netmask 255.255.255.224

iface eth0:32 inet static
  address 1.2.170.127
  netmask 255.255.255.224

#ipv6
iface eth0 inet6 static
   address 1234:4321:678:281:7ad5:0000:0000:0001
   netmask 64

up ip route add default via fe80::1 dev eth0