How to Change gateway in apple computer?

To get the gateway address do this:1) Click Apple Logo top left

2) click System prefrences

3) Click Network (under internet & wireless)

4) Make sure your connected to your network

5) Click the advanced button at the lower right hand of the dialogue box

6) Click the TCP/IP tab

7) It will be listed here called "Router" that is the same thing as gateway address.