.

Windows

• Windows 95:Type winipcfg in command prompt and look for a box marked Adapter Address
• Windows NT: Type ipconfig /allat command prompt
• Windows 2000: Type ipconfig /allat command prompt
• Windows XP: Type ipconfig /allat command prompt
• Windows Vista: Type ipconfig /allat command prompt

MAC

• OS X: Click on Apple, click on System Preferences, and select Network, Pick a location who's MAC address you need to find out
  
  
  
• Open Transport: Open the Apple Talk control panel. Go to the Edit Menu and select User Mode. Select the Advanced radio button and click OK. Click info.

Unix

• Solaris/SunOS: The ethernet is typically called ie0 or ie0. First become root by using su. Type ifconfig -a and look up the relevant info.
• Linux: Become root/super user and type ipconfig -a
• FreeBSD: User command dmesg to display the MAC address
• IRIX: Coming soon..
• HP-UX: Type lanscan

No OS installed

• No OS installed: Obtain a Fermi Linux floppy disk. This can be used no matter what OS you intend to install. Boot the machine to the "Choose a Language" screen. Then press Ctrl-Alt-F4. Look for the lines near the bottom of the screen that starts with the string "<6>eth0:". Near the end of the line should be a string of 6 hexidecimal numbers separated by colons. This is the MAC address.