Configuring DHCP on Macintosh OS
1.Click on the Apple Menu
and select the System Preferences option.
Result: the System Preferences window opens.

2. In the System Preferences window, click the Network button.
Result: The Network window opens.

6. Press the Apply Now button and close the Network and System Preferences windows.
7. Using your web browser (such as Safari or Internet Explorer) manually navigate to http://netreg.umassd.edu and enter your account information to register.
You have successfully configured your Macintosh to use DHCP.