Cisco RV042 4-Port Fast Ethernet Dual WAN VPN Router Load Balancing Router: The router features 1 dedicated WAN port as well as a port that can be used for DMZ or for adding a 2nd WAN Internet connection. Utilizing 2 simultaneous Internet connections allows the router to perform load balancing, which helps to optimize network traffic Integrated Firewall: The router features a powerful firewall to help protect your computer against malicious attacks that often target computers connected to the Internet, giving you peace of mind while you are connected to the web IPSec VPN Tunneling: The router works as a Virtual Private Network (VPN) gateway, allowing for up to 50 simultaneous VPN tunnels. IPSec security features many advanced technologies such as DES and 3DES encryption as well as MD5 and SHA authentication to help protect your network DMZ Port: The router features a DMZ port that allows you to connect a computer directly to the Internet, bypassing the integrated firewall. This allows advanced users to connect a computer on their network in order to work with applications that a firewall may interfere