isteam Fri, 07/06/2007 - 11:53
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I have had the most luck with http://www.ethereal.com/ for capturing and troubleshooting packets.


Steps are as follows:


1. Install Ethereal on a laptop/PC

2. Connect to switch that spambox is on.

3. Configure a SPAN session to mirror packets to the port your laptop is plugged into.

4. Start capturing packets.


You can filter the capture to display only HTTP/SMTP if you choose.


If you are just looking for traffic information, www.ntop.org makes a pretty handy free analyzer.

a.shaukat Mon, 07/09/2007 - 02:57
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u can use a netflow analyser to monitor traffic ( if this traffic passes through the router)


AdventNet NetFlow Analyser

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