AWS Shield - AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that safeguards web applications running on AWS.
F5 Advanced Firewall Manager - Stop even the most massive and complex DDoS attacks with BIG-IP Advanced Firewall Manager: advanced data center protection against layer 3–4 threats.
Syslog for windows - This is another syslog for windows, it includes daemon and client. Features: RFC 3164-compliant;
pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Rapid7 Nexpose - Network vulnerability and risk management solution.
FireMon - FireMon Security Intelligence Platform delivers continuous visibility into and control over firewall infrastructure.