After more than 100k downloads on iOS platforms, Network Utility comes also to OS X with Network Kit, a complete set of network tools.
Great little utility that I've ended up using daily. I had a question/suggestion for the developer and they responded quickly and pointed out that my suggestion was already in the application. I'd rate it if that was the scale used.
Quelques bugs tres vite corrigé par le développeur, la nouvelle version fonctionne parfaitement