o_qemu_extra+=( \
"-netdev" "bridge,id=lan,br=$BR_LAN,helper=$HELPER" \
"-device" "virtio-net-pci,id=devlan,netdev=lan,mac=$MAC_LAN" \
o_qemu_extra+=( \
"-netdev" "bridge,id=lan,br=$BR_LAN,helper=$HELPER" \
"-device" "virtio-net-pci,id=devlan,netdev=lan,mac=$MAC_LAN" \