From: Kurt Kruegel (kurt@xxxxxxxxxxxx)
Date: Fri Feb 15 2002 - 22:33:04 GMT-3
interesting ...
went into windows media player settings
under options - network
heading
use the following protocalls for the reception of windows media streams over a
network.
checked are (in order)
multicast h323 ?
udp
tcp
http
Mike Pervere wrote:
> Chuck (et al) -
>
> I hate to propose such an answer on a Cisco-oriented forum, but look at
> Packeteer's PacketShaper. I just had a university client buy one, and it
> was reasonably cheap, very intelligent, and unbelievably easy to implement.
>
> It looks into the payload of the packets, up to 200Mbps throughput, and does
> a real good job of picking out Application traffic, without regard to IP's,
> ports, etc.
>
> Even if it's not a preidentified data type, it will still flag it as an
> unclassified (but isolated) type, which you could then point, classify and
> shape yourself. Very cool! (and I have no vested interest one way or the
> other)
>
> Mike
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Church, Chuck
> Sent: Friday, February 15, 2002 10:53 AM
> To: 'ccielab@groupstudy.com'
> Subject: OT: Any way to block streaming audio/video?
>
> Anyone,
>
> Has anyone had luck blocking Windows Media Player from streaming
> audio sites? I've been looking at Sniffer traces this morning, but don't
> see anything that NBAR could block. The first packet after the connection
> is established looks like this:
>
> GET /jazzfmstation HTTP/1.0
> Accept: */*
> User-Agent: NSPlayer/7.1.0.3055
> Host: mediaservices1.webpage-marketing.com
> Pragma:
> no-cache,rate=1.000000,stream-time=0,stream-offset=0:0,request-context=12856
> 9540
> ....
>
> After that, every packet coming from the server is interpreted as
> 'Graphics Data' by Sniffer, but is actually the compressed audio. Any
> ideas?
>
> Thanks,
>
> Chuck Church
> Sr. Network Engineer
> CCIE #8776, MCNE, MCSE
> US Tennis Association
> 70 W. Red Oak Lane
> White Plains, NY 10604
> 914-696-7199
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