tcpdump
Network Monitoring
Powerful command-line packet analyzer used for troubleshooting network issues and capturing traffic.
Network Monitoring
Powerful command-line packet analyzer used for troubleshooting network issues and capturing traffic.
Network Monitoring
Open source network monitoring and graphing tool using RRDTool for data storage and graphing.

Network Performance Monitoring
Open-source high-speed network traffic analysis tool providing real-time flow collection and host traffic characterization.
Price$24.92+ / month
Network Monitoring
LibreNMS is a free, open-source network monitoring system that provides auto-discovery, alerting, and comprehensive SNMP-based monitoring for IT infrastructure.

Network Monitoring
Network visibility platform providing deep observability across hybrid cloud infrastructure.

Network Monitoring
OpenNMS is an open-source enterprise-grade network monitoring platform designed for large-scale, distributed network environments with fault and performance management.
Price$500+ / month
Network Monitoring
Canadian network intelligence platform offering traffic management for telecom operators.
Network Monitoring
High-speed network recording and packet capture platform providing always-on forensic evidence for security and network operations.

Network Detection and Response
Network detection and response platform combining deep packet inspection with machine learning for high-fidelity threat detection.

Network Monitoring
Network monitoring platform with automated layer 2 mapping, flow-based traffic analysis, and multi-technology monitoring support.
Price$146.25+ / month