auto eth0.666
iface eth0.666 inet manual
        pre-up /sbin/ip link add vxlan-mesh type vxlan id 16306234 group ff02::15c dstport 4789 port 32768 61000 no udpcsum udp6zerocsumtx udp6zerocsumrx dev eth0.666 || true
        up /sbin/ip link set vxlan-mesh up
        post-up /usr/sbin/batctl ra BATMAN_V
        post-up /usr/sbin/batctl -m bat-welt if add vxlan-mesh
        down ip link set vxlan-mesh down
        post-down ip link del vxlan-mesh || true