What UDP port number(s) is/are most likely to be unblocked at a client? [closed]

Posted by mike on Server Fault See other posts from Server Fault or by mike
Published on 2012-05-30T16:15:52Z Indexed on 2012/05/30 16:44 UTC
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port

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udp

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best-practices

For a custom UDP server servicing a wide variety of client machines sending custom UDP packets, what's the best port to choose as the standard listening port for the server (in that the port is not likely to be disabled at the client by a firewall or router)?

My first inclination is to use port 80, since almost everyone is using HTTP, but that's TCP, and maybe blocking of UDP on port 80 has become common.

What's the best port to choose?

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