For the K1000:

Navigate to: Settings>Support>Troubleshooting Tools

Or, if you have organizations enabled, it will be: System>K1000 Settings>Support>Troubleshooting Tools

Once there, click on Edit Mode. Select ifconfig from the drop-down menu and click Test.

In the window that pops up, the entry by "ether" will be the MAC address.




For the K2000:



Select ifconfig in the drop-down and click Test.

You may see two entries for "ether" as there may be 2 active network connections. Those are the MAC addresses.