1)   Essential NetTools 4.0
Essential NetTools is a useful tool for diagnosing networks and monitoring your computer's network connections. It's a Swiss Army knife for everyone interested in a set of powerful network tools for everyday use.

 2)   Free IP Tools 4.2
Free IP Tools is a convenient way to keep all important network utilities in one place. Twelve essential network tools inside a single user-friendly application. Troubleshoot network problems with this free collection!