This device supports a simple local area network and Internet access share, offering great cost savings. The local area network connects up home computers while also allowing any of the computers to access the Internet, share resources such as printers, scanners and other peripherals and file sharing:
With a broadband connection of 512K/64K through a NAT broadband sharing device, up to five (or eight) computers can get on the Internet without any appreciable loss of speed. Both download and upload speeds work just fine. Such a low-cost but effective solution is scaleable - adding more computers is as simple as buying a hub or a switch and linking them through the uplink port.

A broadband modem/router may be one physical box or separate boxes. Either way the modem will keep a system log that will record activity arising from a connection to the broadband link.

As part of the connection process DNS ip addresses may be sent to the modem. If the ISP hasn't specified in their install instructions any IP addresses, it is highly likely that the router will not have any DNS values explicitly stated in its setup. The primary DNS address will be passed to the router so that the router can identify the DNS to use. It is possible to browse the log and identify both the primary and secondary DNS ip addresses. These can be noted and then specified in the router DNS settings or, for a combined box, the modem/router DNS settings.

• Vigor Broadband Router example