Web-based Traffic and Security Network Traffic Monitoring
The Swiss Army knife for 802.11, BLE, IPv4 and IPv6 networks
Packet generator and packet editor for Windows, Linux, BSD, and macOS
SysLinuxOS for System Integrators
modbusmplex - a MODBUS/TCP multiplexer
DPDL (Dynamic Packet Definition Language) is a small framework library
NetIO-GUI measures network speed between two peers
Ubuntu Based Virtual Server using noVNC to serve Cisco Packet Tracer.
Advanced Network Packet Generator
Simulating an IP packet traversing the Linux kernel.
Free portable cross-platform graphical multi pinger, 100%-pure java
Simulating bad network connections so you can build better systems
ForNesiaVPN - An application to securely tunnel IP networks
a easy-to-use packet analyzer&some useful freewares