Refurbished. The performance-optimized 3300 Series gateways for residential and business customers incorporates world-class hardware design and Netopia’s field proven,feature-rich embedded software.The Gateway combines an ADSL2+ modem with an Internet router. It translates protocols and eliminates the need for special desktop software. The built-in DHCP and DNS proxy features minimize or eliminate the need to program any network configuration into your home personal computer. A web server built into the Netopia Operating System makes setup and maintenance easy.Network Address Translation (NAT), password protection, Stateful Inspection firewall and other built-in security features prevent unauthorized remote access to your network.