The SonicWALL IPSec Virtual Private Networking (VPN) Upgrade provides an easy, affordable, and secure means for remote workers to access the enterprise LAN. SonicWALL VPN is based on the IPSec standard, making it compatible with other IPSec VPN gateways, such as Check Point Firewall-1, Cisco PIX, Nortel Contivity and Axent Raptor. It supports up to 10 VPN tunnels.This software is designed for SonicWALL SOHO3, SOHO2/10, SOHO2/50 Internet security appliances.For a complete compatibility list please refer to the original manufacturer's web site.