A Dynamic DNS (DDNS) Service provides a central public database where information (such as e-mail addresses, host names and IP addresses) can be stored and retrieved. The Dynamic DNS server also stores password-protected information and accepts queries based on e-mail addresses.
If you want to use a DDNS service, you must register for it. The Dynamic DNS client service provider will give you a password or key.
To set up for DDNS:
Use Wildcards - If you have DYNDNS as your DDNS service provider, you may select the Use Wildcards check box to activate this optional feature.
Note: The router supports only basic DDNS and the login and password may not be secure. If you have a private WAN IP address, do not use DDNS service as it may lead to problems.