New Wireshark 2.6.1! Wireshark is one freeware tool for monitoring networks. It can help you identify problems, in analysis of the network but also in the development of networking programs.Η application, has deservedly earned the title of best network protocol analyzer:
It offers to users the means to capture the movement that runs in one network computers or to someone system, interactively.
The app has just been updated to 2.6.1. The update fixes too many bugs in the application, as you will see from the link below.
https://www.youtube.com/watch?v=U0QABcTD-xc
Read what the new one fixes version
Download the app for platform you are interested in: