EtherScout

EtherScout is an Internet traffic monitoring utility that sits in your network and records and analyzes traffic patterns of Internet usage. Reports can be generated in real time, showing detailed information on what users are doing, or trends of surfing behavior on your network.

After collecting this information, EtherScout reports can immediately show you: which Web sites users have just been viewing; what Web sites are most commonly visited through your network; how much network traffic users are generating per day, week, or month; and how much traffic each protocol is generating and by whom.

You can even write your own reports using HTML and SQL, allowing you to extract the exact information you need to see.