RE: Deny Access to streaming

  • From: "Herzig, Mark" <mherzig@xxxxxxxxxxxxxx>
  • To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
  • Date: Tue, 7 May 2002 16:07:28 -0400

You probably need to set up a packet filter(s) and/or protocol rule(s) to
deny access to streaming ports and protocols.
For example, Windows Media mms protocol uses port 1755.  
Real uses RTSP over port 554.
Blocking these streaming protocols will not block HTTP streaming, which is
an option on Windows Media Server and probably others.  If HTTP streaming is
enabled on a Windows Media Server it will default to port 80, but can be
configured to another port.

The actual stream itself will usually be served over UDP.  Thus blocking UDP
traffic may do the trick for most streaming (not all, because you can stream
over TCP and some web-sites choose to do this).

Mark Herzig
InfoLibria Inc.
http://www.infolibria.com

> -----Original Message-----
> From: isa@xxxxxxxxx [SMTP:isa@xxxxxxxxx]
> Sent: Monday, May 06, 2002 9:54 AM
> To:   [ISAserver.org Discussion List]
> Subject:      [isalist] Deny Access to streaming
> 
> http://www.ISAserver.org
> 
> 
> Hi everyone.
> I need to deny access to any streaming. I disabled Streaming Media Filter,
> but doesn't seem to do the trick. PLEASE help. Thank you!
> 
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