The modem is a network device, and it sits at address 192.168.1.1 if you use the Ethernet connection to it, or 192.168.1.2 if you use the USB connection to it. The USB driver installs a "Virtual Netword Card" and the default speed is 10 MB. As the broadband has a maximum speed of 8 MB, then that is already fast enough. The DNS for the broadband access is held inside the modem itself. Visit its configuration screen at 192.168.1.1 or at 192.168.1.2 (USB) and log in with user a name and password of "admin" for both.