Protocol Summary

RTSP is the Real-Time Streaming Protocol.

MMS is the Microsoft Media Server.

Communication

RealPlayer vedio online use port 554 by default, it will switch to other ports when port 554 is invalid.

How to block RTSP/MMS?

Because RTSP/MMS can switch port automatically, so you can not block them only by disable the ports in the firewall. So the only way is using professional tools to block RTSP/MMS.

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