Protection of your network is a mission critical activity. At Linksys, we build powerful security into every product, to keep your wired and wireless networks safe. Linksys Small Business Series systems have advanced firewall, encryption and authentication features to protect you from network threats - threats that can seriously disrupt or damage your business by stealing your valuable data, slowing down your network and interfering with business-critical applications. Our systems ensure maximum application availability enabling you to meet corporate governance and business continuance requirements. The Linksys Small Business Series is the affordable, reliable, high quality networking solution that helps you do business smarter. Secure and easy to install and maintain, it's built to grow with your business.

In addition the RVS4000 features a Virtual Private Network (VPN) security engine that creates encrypted "IPSec tunnels" through the Internet. The IPSec VPN tunnels enable remote users from at home, or on the road to easily, and securely connect to the office network through a typical wired or wireless broadband connection. When used with another RVS4000 or other Linksys VPN router, "branch-to-branch" connections can be established allowing users in a remote office to connect to the corporate network.