I use NTop-XTRA to monitor network access and bandwidth usage. NTop is a high quality open source protocol analysis and traffic flow tool. NTop-XTRA Features
ntop sports a web based interface for browsing network traffic information as well as limited configuration and administration functionality.
ntop runs as a service under Microsoft Windows so that you do not need to be logged in for it to work.
Network traffic may be filtered so that only the traffic you specified is analyzed. So, for instance, if you're only interested in the IP traffic you can filter out all other traffic. The filter language is the same as the packet capture filter language used by Ethereal and tcpdump.
ntop is a full featured tool, with hundreds of features, here is a summary of what ntop can do for you:
* Display traffic statistics
* Breakdown the network protocols running on your network
* Store traffic statistics in RRDTool format for historical analysis and trending
* Assist with identifying your users
* Identify host operating systems without disturbing your network
* Breakdown IP traffic by conversation
* Breakdown IP traffic statistics by port
* Breakdown IP traffic by subnet
* Act as a NetFlow/sFlow probe and collector (as supported by Cisco, Juniper and Foundry devices
NTop-XTRA System Requirements
You will need:
* A machine running Windows NT4 SP6a, 2000, or XP
* Internet Explorer 5.5 or above
* A network interface card
This software is FREE and can be downloaded by clicking the link below.
NTOP-EXTRA
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