I am in urgent need of the port numbers that are usually open on most
firewalls so that applications can transmit information to users on those
ports who are behind firewalls. As far as I know (correct me if I am wrong),
but most firewalls (e.g. Microsoft Proxy 2.0) have special ports open for
some well-known applications such as the RealPlayer and also have a number
of ports open for all other applications to use. I've been trying to find
these ports numbers on the net, but have not suceeded in doing so. Please if
anybody has this information please send it to me. The reason I'm asking
this question is because I am creating a application that plays streamed
audio transmitted to it from another application running on a remote
webserver. I want users behind firewalls to be able to use my application so
I need to know on what ports I can transmit my audio to the user (via UDP)
so that if he/she is behind a firewall, the audio will be received.
Thanks a MILLION in advance,
Ahmed
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