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Port blocking: Internet Radio

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6 replies

by benwagg 1 view

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Specifically, which ports should be blocked on a firewall in order to prevent users from using bandwidth for listening to internet radio, but not prevent them from other "legitimate" browsing activity? Is it sufficient to just search the IANA portlist and block all that reference "radio"?

6 replies

by joseph moore

I can't remember the Real Audio streaming media port, but typically MP3 streaming (using Winamp's Shoutcast technology) runs on port 8000.
Now, the port can be changed easily, so this is not a perfect fix.
Check your logs. That will be the best way to tell.

hope this helps

by benwagg

Actually I was looking for a list of the default ports for Real, WinAmp, Windows Media, Yahoo Radio, etc. - all the internet-radio bandwidth hogs that users are clogging our gateway with. I figured someone has already gone through this and made the list, so was hoping not to have to research all the others myself... Anyone?

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