Sharing Your Internet Connection
If your Mac OS X computer is connected to the Internet, you can share its Internet connection with other computers on your local network.For example, if your computer accesses the Internet using a DSL (digital subscriber line) modem connected to Ethernet, and your Macintosh also has an AirPort Card installed, you can share the DSL connection with other AirPortequipped computers. Complete instructions for doing so are included with AirPort products.When you select the checkbox to share your Internet connection using Built-in Ethernet, a warning appears about the possibility of causing a network problem. If your network already has a DHCP server, enabling Internet Sharing will add a second DHCP server, confusing other computers on the network.
