Your organization is connected to the Internet, but can you ensure that it is used appropriately and effectively? Do you want to monitor and count IP traffic between your local area network (LAN) and Internet? TrafMeter counts traffic in your LAN and shows it as colored lines in realtime. So you can always "see" which user is using the Internet connection most of all.
 
Make your IP traffic visible with TrafMeter!

TrafMeter main features

• Numerical and graphical format of the readout
• Counting of custom IP packets with a flexible filter engine
• "Live" graphical representation of bandwidth usage in a real-time like a traffic monitor
• Creating XML Traffic Reports
• Writing counters in a database
• Packet Logging in a file or in the database for further analysis
• Requires no special hardware or configuration
• Running as a normal application or as a Windows 2000/XP service
• Simple, easy to understand an user interface

TrafMeter site: http://www.lastbit.com/trafmeter