Utility that displays the number of TCP/UDP bytes and packets sent and received by each application on your system.
Open source software for intrusion detection and prevention.
Network monitoring tool that helps capture and analyze network traffic.

Find out if someone is stealing your internet with this small utility.
Tool for network analysis and diagnostics, which allows identifying active devices, available services, and checking connectivity in a network environment.
Software that allows monitoring Wi-Fi networks and identifying connected devices.