>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.
Packeteer has some excellent white papers on its site, dealing with subtle aspects of TCP, as well as content switching and the like. Worth reading in general. > >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: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of >Church, Chuck >Sent: Friday, February 15, 2002 10:53 AM >To: '[EMAIL PROTECTED]' >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 >_________________________________________________________________ >Commercial lab list: http://www.groupstudy.com/list/commercial.html >Please discuss commercial lab solutions on this list. >_________________________________________________________________ >Commercial lab list: http://www.groupstudy.com/list/commercial.html >Please discuss commercial lab solutions on this list. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=35566&t=35566 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
