Adaptive Security Appliance

The Cisco ASA 5500 Series Adaptive Security Appliances, or simply Cisco ASA, is Cisco's line of network security devices introduced in May 2005. It succeeded three existing lines of Cisco products: the Cisco PIX firewall and NAT device in 2008, the Cisco IPS 4200 Series, and the Cisco VPN 3000 Series Concentrators.