The perfect solution for connecting multiple users to one high-speed Internet connection or Ethernet backbone, the BR4100DC combines the convenience of networking with the advantages of broadband Internet access without the added cost of extra network connections, modems, or switches. The router's four 10/100 Mbits/sec ports allow up to 253 users to share a single cable or DSL modem connection.With an intuitive web-based GUI and Quick Setup Wizard, the installation, configuration, and administration of your router is straight forward and fast. To protect your network, the router comes with a built-in, configurable firewall to block hacker intrusion. The router also uses NAT (Network Address Translation) to make sure that your network's private IP addresses remain hidden from the Internet.