Many people know how to find the IP address on his Windows OS PC, however it is not easy to find out your IP address on the Mac, his guide will show you how to find IP Adress on a Mac.
Use Finder to open the applications folder, then Utilities, then terminal. When the terminal window opens, and the prompt appears, type ifconfig
Steps
1. Open a terminal window so that you can type commands that are not on a menu. If you already have a terminal window open, skip to Step 5. Otherwise, click on the desktop background (not on any application).
2. The top menu bar should now say "Finder"; click on Go -> applications
3. On the applications menu, click on Utilities to open the set of commands that are on the Utilties submenu.
4. Under the Utilities folder, click on Terminal.
5. In the terminal window, type "ifconfig" then hit return.
6. In the output, there will be lines that include inet x.x.x.x netmask 0xffffff00 broadcast a.b.c.d
7. The IP address of the interface is the four numbers denoted by x.x.x.x in the lines described above.
8. There may be a line that says inet 127.0.0.1 netmask 0xff000000 This is the loopback interface, and always uses the IP address 127.0.0.1
Tips
• If you want to have terminal handier than looking it up in the finder, drag it to the tool dock
• When you are finished with the terminal, you can type exit, but this will not close the window. To do that, you need to use the top menu bar, terminal -> close
• This is for an Apple computer, for Windows, see the link below
• If you are behind a router, and you want to see your external IP address, go to one of the sites in the External Links
• Alternative Method: Click on Apple icon -> About This Mac -> More Info -> Network; IP Address is displayed on the right
• Alternative Method: Apple menu -> System Preferences -> Network; select your connection type from the drop-down menu and click TCP/IP. This also provides other information such as the subnet mask and router.
Warnings
When using an IP information site from an ISP that uses a transparent web proxy (such as AOL), be aware that the reported IP may be that of the ISP's web proxy and not your actual IP.
Of course, you can also check your IP by visiting one of these websites: