auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

auto eth1.221
iface eth1.221 inet manual

auto eth1.222
iface eth1.222 inet manual

auto eth1.223
iface eth1.223 inet manual

auto eth1.224
iface eth1.224 inet manual

auto eth1.225
iface eth1.225 inet manual

auto eth1.226
iface eth1.226 inet manual
