Wireshark Network Analyzer

Wireshark is a popular network protocol analyzer that has a rich and powerful feature set. It runs on most computing platforms including Windows, OS X, Linux, and UNIX. Network professionals, security experts, developers, and educators around the world use it regularly and it’s freely available as open source under the GNU General Public License version 2.

Wireshark will show you everything you need to know (and then some) about your network.

[thumbshot url=http://www.wireshark.org/]

License:Freeware
Requirements: Windows, Mac, Linux, Unix
Website: http://www.wireshark.org/

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