Cisco ASA includes features from the different Cisco VPN product families. Cisco products such as the PIX Firewall, IOS routers, and VPN 3000 Series Concentrators offer VPN capabilities to small, medium, and large organizations. Cisco ASA integrates and enhances several IPSec and SSL VPN features from the Cisco VPN 3000 Series Concentrators and PIX Firewalls, respectively. The VPN 3000 Series Concentrator family includes the following models:
Cisco also offers an IPSec VPN Services Module for the Cisco Catalyst 6500 Series Switch and the Cisco 7600 Series Internet routers. They are designed to provide IPSec VPN services to large enterprises and service providers.