Not sure how actionable these constant values are but we are missing: :IFF_ALLMULTI, :IFF_AUTOMEDIA, :IFF_BROADCAST, :IFF_DEBUG, :IFF_DYNAMIC, :IFF_LOOPBACK, :IFF_MASTER, :IFF_MULTICAST, :IFF_NOARP, :IFF_NOTRAILERS, :IFF_POINTOPOINT, :IFF_PORTSEL, :IFF_PROMISC, :IFF_RUNNING, :IFF_SLAVE, :IFF_UP.

Whether we can use these values like IFF_UP using Java APIs might be why they don't exist but perhaps we just do not have them generated? This is currently an issue for https://github.com/tenderlove/zeroconf.