New York University Faculty of Arts and Science College of Arts and Science Graduate School of Arts and Science

Computing Resources

Requesting Network Access

Finding Your Computer's Ethernet Address


Here is how to obtain the ethernet address or physical address of your PC or laptop.


To obtain the ethernet address of your Windows computer

Click on ...
START
RUN
COMMAND
Then in the DOS window, type "ipconfig /all" as per the text underlined in blue below.. The window will look something like this:

c:\windows\Desktop> ipconfig /all

Press <ENTER> and you will see the following information:

ipconfig output

The physical address of your PC or laptop is the information shown here as underlined in blue.

To obtain the ethernet address of your Mac 9 (OS X below)

Go to the "apple menu" (on the upper left corner of the screen)
Control Panel
TCP/IP
Click on Info and the hardware address of your Mac will be listed

To obtain the ethernet address of your Mac OS X

Go to the "apple menu" (on the upper left corner of the screen)
Click on System Preferences
Click on Network
Select "Built-in Ethernet" on the "Show" pull-down menu
Click on the tab "Ethernet" where the "Ethernet ID" will be listed

To obtain the ethernet address of your Linux machine

Use ifconfig command to get your ip address.

Look under the eth0 group:
HWaddr is your MAC address
inet addr is your IP address

(Note: ifconfig may not be in your path, in that case try /sbin/ifconfig)