The ZyWALL 100 is designed to act as a secure gateway via xDSL/Cable modems or broadband routers for small to medium size companies. The ZyWALL 100 features an ICSA certified firewall, IPSec VPN capability, MultiNAT, web pages content filtering and an embedded web configurator for easy configuration and management. Given the complexity of today's networks infrastructure, businesses are faced with the connectivity challenge of a fast growing community of mobile remote users and branch offices. The ZyWALL 100 allows companies to establish up to 100 IPSec (IP Security) VPN connections with business partners and remote branch offices. VPN uses data encryption, and the Internet to provide transparent and secure communications between two or more sites; reducing the cost far below the expense of leased lines.