D-Link DWR-112 User Manual page 38

Section 3 - Configuration
Maximum Idle
Enter a maximum idle period during which an inactive Internet connection will be maintained before being dropped. To disable
Time:
this feature, enable Auto-reconnect.
DNS Servers:
Enter the Primary and Secondary DNS Server Addresses (Static L2TP only).
MTU:
Maximum Transmission Unit - You may need to change the MTU for optimal performance with your specific ISP. 1400 is
the default MTU.
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.
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