The Complete Cisco VPN Configuration Guide

Easy VPN Server Support for 6.x

Since the release of FOS 6.2, the PIX security appliances, from the 501 all the way up to the 535, can perform the function of an Easy VPN Server; and with the addition of the ASA appliances, they, too, can perform this function. Normally, I prefer to use a VPN 3000 concentrator to support a large number of remote access users; however, if you already have a PIX/ASA appliance in place and need to support only a small number of clients, you can use your existing PIX/ASA for this function. This is preferable to a router if your PIX supports a VAC+ encryption card to perform hardware encryption and your router lacks this, or if you need advanced address translation capabilities or security functions or features, ...