The functionality of the TCPIPControlPanel in Mac OS 9 has been merged into NetworkPreferences in Mac OS X.
Dive into OS X
Everything about Mac OS X and Apple!
The Dive into OS X project is a community of IT professionals sharing information and solutions about OS X and Apple in general. We welcome your participation through suggestions, comments or contributions. Please follow this link for site registration which will allow you to submit your own articles and forum posts.