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Slow network. How to remove unwanted traffic.

Our internet connection is running slow and I would like to clean up unwanted traffic on my network.
I have a T1 data connection connected and monitor by a Pix firewall intergrated with websense.
I am not sure where to post this at.
I was told by our IT that provides our T1 that we are using up all of our T1 most of the time.
I looked at pix device manager monitor is it show that outside/inside interfaces are running about 600-700kbps most of the time. I have seen it up to 1500kbp and thing start to stop responding like email.

I ran a websense report on traffic and it show things like p2p apps, intuit, streaming video, chat clients.

the intuit is software that came on the pc.
is there a easy way to remove it off 200 pc?

Is there away to see with some kind of network scan to see what apps are taking up the most bandwith?

I have block morphes p2p by adding a access-list on my pix firewall but is there a easier way to find and block unwanted traffic like p2p, intuit, software that comes with pc that is running in the back ground?

I also have SMS 2003 but not sure how to push out anything or us it well.

Microsoft Server OSNetwork ManagementCisco

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You need to find out what traffic it is.  Do you have a switch that the firewall is plugged into?  Does it do port mirroring?  If so I would copy all the traffic on that pix to another port and run ethereal on it.  That should tell you what percentage of what service is taking up the T1.

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how do you use etherreal?
how does it tell you what kind of traffic it is?

I do have a switch that can do span / port mirroring
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Take a look with PRTG ;) You have a free trial on the website : http://www.paessler.com/prtg
This will help you to see the traffic

For the software you wanna remove, probably a batch file loaded when the computer open.
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what are you running for your email -if it is exchange run it in cached mode as it is less heavy on bandwidth
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thnx, so I assume the problem is in control now after tuning websense ?

Microsoft Server OS
Microsoft Server OS

The Microsoft Server topic includes all of the legacy versions of the operating system, including the Windows NT 3.1, NT 3.5, NT 4.0 and Windows 2000 and Windows Home Server versions.

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