Zeek is a powerful network analysis framework
Database connection pool written in Java
A network diagnostic tool
Ethercat analyzer. Pcapng (by wireshark) to cvs files converter.
Firewall log analyzer
Distributed tcpdump for cloud native environments
RCDCap is a remote capture preprocessor
Real-time log monitoring in your browser
IPTV/NVR/CCTV/Video cloud https://fastocloud.com
Snare Enterprise: bit.ly/Snare-Trial
Xplico is a Network Forensic Analysis Tool (NFAT)
360-FAAR Analyze FW1 Cisco Netscreen Policy Offline Using Config/Logs
Open Source SIEM
Build custom filter for your network based off of common communication
Open Source BGP Looking-glass
Monitoring your infrastructure for free.