That's fine in some places, where ISPs provide extra IP addresses at a minimal fee. This is where the DI-704 comes in. The little box allows you to use the one IP address your ISP gives you with DSL or Cable modem service, but access the Internet with more than one computer at the same time. The DI-704 replaces the hub in your LAN, and can accommodate four computers directly plugged into the unit. With this little bad boy, you can avoid those extra charges for more IP addresses.
Installation is a snap.
You must clear out your computer's network properties such as IP Address, DNS Server Addresses, and Network SubMask, and set your computer to use DHCP to automatically query the DI-704 for an IP address to use. After fixing the local settings for your computer, you pull up your web browser and type the IP address for the DI-704 itself into the Location bar. You are presented with a very straightforward login screen, and different administration screens that allow you to configure and customize the DI-704 for your use. Everything is very straightforward and easy to work with, and documentation available with a click of a button really helps out. The DI-704 also acts as a firewall to protect your computer from unwanted intruders.