Sending UDP broadcast, receiving multiple messages

Question

I\'ve got 2 programs, 1 for sending an UDP broadcast message and 1 that is listening for this broadcast. My problem is that sometimes when I send a broadcast, the receiver r

Answer 1

UDP packets aren't reliable, it's totally possible that you'll get the same packet twice or even none at all, when using udp you need to include some kind of unique ID in your data so you can discard errors or request a resend.