Dynamic Domain Name System (DDNS) is a method of keeping a domain name linked to a changing IP address since not all computers use static IP addresses. D DNS automatically updates a server in the DNS with the active configuration of its hostnames, addresses, or other information. DDNS assigns a fixed domain name to a dynamic WAN IP address. Hence, you can host your own web FTP, or another type of TCP/IP server on your LAN. There are several DDNS services to choose from, most of which are free, or available at a nominal cost. The most popular is DynDNS.
To configure dynamic DNS policies, follow these steps:
| Step 1 | Select WAN > Dynamic DNS. |
| Step 2 | In the Dynamic DNS Table, select the interface (WAN1, WAN2, USB1, or USB2) to add to the Dynamic DNS policy. |
| Step 3 | Click Edit. |
| Step 4 | Check Enable this Dynamic DNS policy to enable the policy configuration. |
| Step 5 | Select the name of service provider from the Provider drop-down list. |
| Step 6 | Enter a Username and Password for the DDNS account. |
| Step 7 | Enter the full name of the device including the domain name in Fully Qualified Domain Name. |
| Step 8 | Check Enable to receive updates to Dynamic DNS provider and select the periodicity. |
| Step 9 | Click Apply. |
| Step 10 | Click Refresh to refresh the Dynamic DNS Table. |