auto vmbr0
iface vmbr0 inet static
address x.x.x.x
netmask 255.255.255.y
gateway x.x.x.1
bridge_ports eth0
bridge_stp off
bridge_fd 0
iface vmbr0 inet6 static
address z:z:z::z
netmask 64
gateway z:z:z::1