Open the Airport Utility. This is usually found in the Utilities folder in Applications.
Select your Airport Base Station.
Click the Network tab, under Port Settings click +.
Leave the description blank. Enter 56777 for both the public and private TCP ports (if the settings won't save, go ahead and enter 56778 for both the public and private UDP ports as well). Enter the IP address of the time clock server computer as the Private IP Address.
Now you're ready to connect your time clock at another location or from home to the time clock server over the Internet.
Technical Support Team
Redcort Software, Inc.