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Field Name
Description
Selected DNS Server Interfaces
The WAN service selected to be your primary DNS server.
Available Wan Interfaces
WAN services available to be selected for the DNS server.
Primary DNS Server
Enter the IP address of the primary DNS server.
Secondary DNS Server
Enter the IP address of the secondary DNS server.
WAN Interface Selected
Alter this field only if IPv6 environment.
Primary IPv6 DNS Server
Enter the IP address of the primary IPv6 primary DNS.
Secondary IPv6 DNS Server
Enter the IP address of the primary IPv6 primary DNS.
The individual fields on this screen are defined as follows:
Dynamic DNS
Dynamic DNS (DDNS) automatically updates a name server in the DNS with the active DNS configuration of its configured host
-
names, addresses or other data. Often this update occurs in real time.
After selecting 
Advanced Setup -> DNS -> Dynamic DNS 
from the left navigation bar, click the 
Add 
button. The following screen 
will appear. 
Enter your desired settings then click 
Apply/Save 
to commit your changes.