Suricata is a network intrusion detection and prevention engine developed by the Open Information Security Foundation and its supporting vendors. The engine is multi-threaded and has native IPv6 support. It’s capable of loading existing Snort rules and signatures and supports the Barnyard and Barnyard2 tools.
You can download it from the following link: https://packetstormsecurity.com/files/download/161619/suricata-6.0.2.tar.gz
Source: https://packetstormsecurity.com/files/161619/Suricata-IDPE-6.0.2.html