Get IP Address of Anyone Connected to my Arduino set up as server

Jeremy-arduino:
Thank you for your help and the example, but I just looked through my entire arduino folder and can not find either of those files. Could you give me an idea where I might find them? Thanks.

Jeremy

On Mac OS X, applications are folders and the Arduino standard libraries are inside the Arduino application. Ctrl-Click on the Arduino app and select "Show Package Contents". From there: Resources->Java->libraries->Etherrnet

On my system I renamed Arduino.app v22 to Arduino22.app so the full path for me is:
/Applications/Arduino22.app/Contents/Resources/Java/libraries/Ethernet

The built-in libraries are read-only so to make changes you'll need to copy the Etherenet folder to a read-write flder. I think if you put a 'libraries' folder in your Home/Docuements/Arduino folder the libraries there will override the standard libraries?