UDP Multicast connections

[Dujack]

Hello,

Do you know if it is possible (and if so how) to know how many clients are connected to the server in UDP multicast?

Basically, I have a Vi client that sends information in UDP multicast and I would like to know how many clients are subscribed to this multicast address?

Thanks

Jacques

[Gubis]

UDP doesn't require an end-to-end connection, as it is lossy by definition. So there is no real way for the server to know who is listening.

If you really need to, you could probably implement logic so that any client that is listening sends some response back, every time it receives a message.