Siemens CL-110 ADSL2+ one port Ethernet DSL Modem integrates a ADSL modem, one port router and firewall in one device. Data access is provided via Ethernet (ANY computer with web browser) or USB (for OLD computers Win2000/XP). Security is supported via a double Stateful Packet Inspection and NAT based firewall. VPN Passthrough and DMZ support provides additional security support for telecommuters as well as allow flexibility while maintaining security against malicious hackers. With Universal Plug and Play (UPnP) support, home networking becomes a breeze for everyone in the family. Multi Port Range/Popular Application Forwarding makes it even easier to select which application you want your network to allow while ensuring your security at the same time.