You've hijacked your own thread. But I'll try to address your key question.
Originally Posted by Ninguem
I'm curious... How does one implement a binary to use UDP?
I'm not sure what you are asking, but if you mean, "How does one write a program that uses the UDP protocol?", then udp(4)
provides information for programmers.
This gives me the opportunity to ask you what you meant by this:
I've read that multimedia use UDP by default.
I'm not sure what you mean by multimedia
. If you mean to infer that everyone's audio/visual data is transmitted for playback with UDP as the Layer 3 protocol, I would tend to disagree. There are plenty of A/V transmission protocols that use TCP at Layer 3.