21D-Link DWR-555 User Manual
Section 3 - Configuration
Enter the IP address assigned to 
your network connection.
Enter the subnet mask.
Enter the default gateway.
Enter the primary DNS server.
Enter the 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 Ethernet card.
 
Click Save Settings to save your changes, or click Don’t Save Settings to discard your changes.
IP Address:
 
Subnet Mask:
Default Gateway:
Primary DNS Server:
Secondary DNS Server:
MTU: 
MAC Address:
Choose this Internet connection if your ISP assigns you a static IP address.
Static IP