15D-Link DWR-512 User Manual
Section 3 - Conguration
Dynamic IP (DHCP)
This section will help you to obtain IP Address information automatically from your ISP. Use this option if your ISP didn’t provide you with 
IP Address information and/or a username and password. After modifying any settings, click Save Settings to save your changes.
(Optional) Required by some ISPs.
(Optional) Fill in with IP address of primary DNS server.
(Optional) Fill in with IP address of secondary DNS server.
You may need to change the Maximum Transmission Unit 
(MTU) for optimal performance. The default value is 1500.
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 PC.
This feature enables this product to renew the WAN IP 
address automatically when the lease time has expired.
Host Name:
Primary DNS Server:
 
Secondary DNS 
Server:
 
MTU (Maximum 
Transmission Unit):
MAC Address:
 
Auto-reconnect: