D-Link Wireless N900 User Manual page 34

Section 3 - Configuration
MAC Address:
The default MAC Address is set to the Internet port's physical interface MAC address on the DIR-855L. It is not recommended that
you change the default MAC address unless required by your ISP. You can use the Copy Your PC's MAC Address button to replace
the Internet port's MAC address with the MAC address of your Ethernet card.
D-Link DIR-855L User Manual 29