D-Link DIR-412 User Manual page 39

Section 3 - Configuration
DNS Mode: Click the Receive DNS from ISP radio button if you want to dynamically receive the DNS Server IP addresses from your ISP. To manually
enter the DNS Server IP addresses, click the Enter DNS Manually radio button and enter the DNS Server IP addresses in the Primary
DNS Server and Secondary DNS Server fields.
MAC Address:
The default MAC Address is set to the Internet port's physical interface MAC address on the Broadband Router. It is not recommended
that you change the default MAC address unless required by your ISP. You can use the Clone Your PC's MAC Address button to
replace the Internet port's MAC address with the MAC address of your Ethernet card.
MTU:
Maximum Transmission Unit - You may need to change the MTU for optimal performance with your specific ISP. 1492 is the default MTU.
D-Link DIR-412 User Manual 35