Starting in 10.11.x(El Capitan) on OSX, the options will be:ĭebugLogging, UnicastPacketLogging, NoMulticastAdvertisements, StrictUnicastOrdering and AlwaysAppendSearchDomains Others are welcome to test and provide feedback as i'm still waiting on feedback from Apple. I did also notice that changing to NO or deleting the PLIST and rebooting did not seem to bring the MDNS traffic back, so perhaps my test case is flawed or i'm doing something wrong.
Prior to setting this i did see MDNS traffic and after setting/rebooting i no longer saw it. To validate if this works or not i'm using Wireshark with a filter of 'dns and udp.port eq 5353 and ip.addr eq 224.0.0.0/24' and toggling Sharing options on/off to see if i get any MDNS traffic.
Apple Developer Bug Reporting Team has responded back to me with the recommendations below.
