Is there any way to modify TCP/IP from windows network to Mac OS X?

[Tao Guan]

I want to simulate iphone envirement, so I have resigned most of profile setting about user agent.But two fields which I don't know how to modify, are TCP/IP and color depth.
TCP/IP need to be modified from windows network to mac os x, and color depth from 24 bit to 32 bit.
How?Any way? Is it nessecery to modify them?