From: Mike Pervere (Mike@xxxxxxxxxxx)
Date: Fri Feb 15 2002 - 18:55:47 GMT-3
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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