Other than UDP Broadcast or Multicast, what other methods can I use on a WiFI network to discover computers?
问题 I've implemented a simple UDP ping/pong protocol to discover other computers connected to the same WiFI router. This works fine on many WiFI and Ethernet routers, but when I go out on the street to give it a try, many public WiFI networks seem to have either UDP Broadcasts/Multicast disabled, or UDP disabled completely. What other options do I have to discover the computers connected to the WiFI router? (I'd love to create an Ad-Hoc network between the members of my network but this is not