DIR-815 Quick Installation Guide
Selecting Operation Mode
Select the needed operation mode and click the NEXT button.
Router
In order to connect your device to a wired ISP, on the  Device mode  page, 
from the  Connection method  list,  select the  Wired connection  value. 
Then from the Work mode list select the Router value. In this mode you can 
configure a WAN connection, set your own settings for the wireless network in 
the 2.4GHz and 5GHz bands, configure LAN ports to connect an STB or VoIP 
phone, and set your own password for access to the web-based interface of the 
device.
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