pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Cisco DNA Center - Find and resolve network issues with Cisco DNA Center. Provides software-based network automation and assurance. Control and manage intent-based networks.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
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.
Cyberoam - Firewall
Palo Alto Networks Panorama - Greater visibility, tighter control, less effort. Panorama™ network security management simplifies management tasks while delivering comprehensive controls and deep visibility into network-wide traffic and security threats.