Scapy - Scapy is a powerful interactive packet manipulation program.
Nipper - Nipper - Neat Internet Protocol Packet EditoR - is a graphical packet generation tool.
Advanced IP Scanner - Advanced IP Scanner shows all network devices, gives you access to shared folders, and can even remotely switch computers off. Download it Free.
packeth - packeth is GUI and CLI packet generator tool for ethernet.
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...