My limited knowledge of multicast from working with network software a while ago was that it’s local network only, and udp and you needed to “subscribe” to get the broadcast messages. There was also a keep alive component which is a little different from normal UDP.
I wrote a tool to help debug the system by subscribing and then dumping the messages. Perhaps this the problem Apple has with it?
My understanding was a lot of routers didn’t support multicast, I know we had some issues with our network configuration.
My limited knowledge of multicast from working with network software a while ago was that it’s local network only, and udp and you needed to “subscribe” to get the broadcast messages. There was also a keep alive component which is a little different from normal UDP.
I wrote a tool to help debug the system by subscribing and then dumping the messages. Perhaps this the problem Apple has with it?
My understanding was a lot of routers didn’t support multicast, I know we had some issues with our network configuration.
What happens on IPv6 is a interesting question.
https://en.m.wikipedia.org/wiki/Multicast