Dê uma olhada em este tutorial. Ele usa construído nas configurações do OS X para criar um ponto de acesso.
This was done on the latest version of Mac OSX, Leopard (10.5), using a 2007 Macbook Pro
Eles também listaram as desvantagens para fazer isso dessa maneira
You can’t use the wireless adapter for anything else while its being shared.
For Macbook's it will drain the battery so ensure its plugged into a power source
If Mac crashes so does your online Gaming.
Potentially could expose your Computer to outside attack…… (I have to put it for legal reasons I guess!)
Have to have a Mac for it to work (C’mon that’s not a Con….. That’s a Positive!!!!)
If using it for a PSP or a PS3 you need to run the Wireless Network Unprotected.