Active-probing-based network IDS for wireless networks
Automated Bitcoin mining monitor and up-time enforcer
NetStress is a DDoS and network stress testing tool.
Go to github.com/vlm/asn1c for the latest version.
School assignment for a simple network traffic analyzer
Send steganographed text messages to mtr with fake hops in the network
Bandwidth Monitoring Tool; Console SNMP traffic monitor
Monitoring your infrastructure for free.
SpiderOak Nagios check
Asynchronous Spatial Division Multiplexing Router for On-Chip Networks
nagios-statd patch for use with python >= 2.6
Organizing the Knowledge of Humanity
Open Source System and Network Monitoring for Linux Desktop
...a work in progress.