Netflow visualisation and investigation tool
Gerix WiFi cracker
Neo's Series Technology Document
Hexadecimal and raw packet injector and sniffer.
Block or allow connections by country address blocks
NiceShaper provides dynamic traffic shaping for Linux router
Computer security tool for the information gathering stage
Open source voucher management / hotspot system
Brute-forcing WAN/LAN services
DOCSIS network management
Pen is a load balancer for udp and tcp based protocols.