Do not crash if the network interface does not exist
Do not crash if the network interface does not exist

git-svn-id: 94dd66671f629010b01fd78dfe99898dad5555e9@504 a72f678d-4428-462c-85b4-08f063ced704

cskiraly/Streamers,davidek/peerstreamer-Streamers,davidek/peerstreamer-Streamers,cskiraly/Streamers