Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
netcat - Netcat is a featured networking utility which reads and writes data across network connections...
AirGrab WiFi Radar - AirGrab WiFi Radar is a WiFi scanning tool that is used for showing information about Apple AirPort based stations and other WiFi connections and access points.
Ettercap - Ettercap is a suite for man in the middle attacks on LAN.
Lizard Systems WiFi Scanner - Lizard Systems WiFi Scanner is a multi purpose WiFi scanner and WiFi troubleshooting tool designed for dealing with all WiFi related issues conveniently.
NetworkMiner - NetworkMiner is a Network Forensic Analysis Tool (NFAT) for Windows.