How do I set up a wireless network without an Access Point or a Base Station?
A Macintosh computer, with the Apple AirPort card installed & connected to the internet either through the Ethernet or USB port, can share its internet connection with other computers, without the need of an Access Point or a Base Station. On the computer sharing its internet connection (i.e. the one with the Apple AirPort card installed): In OS X (System Preferences:Sharing:Internet:Start), turn Internet Sharing on. In OS 9.x, start the Software Base Station feature of the AirPort application. Now, you can connect your other computers to the internet using our 802.11b wireless products (PC Card, PCI Card, USB adapter). Open MacWireless Control Panel. The sharing computer should show up in ‘Select from list…’ in MacWireless Configuration window. Also remember to select MacWireless in ‘Connect via’ setting of your TCP/IP Control Panel.