D-Link DSL 2740B - Manual (Page 85)

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specific host on the LAN using standard DNS. If for example you are running a public web server or VPN server on
your LAN, this ensures that the host can be located from the Internet if the public IP address changes. DDNS requires
that an account be setup with one of the supported DDNS service providers (DyndDNS.org or TZO).
1. Click the Add button to enter your DDNS configuration window.
2. Select DDNS service provider from the D-DNS provider drop-down list and enter your account data.
3. Click Save/Apply button to apply settings.
DDNS Window
Notice DDNS requires that an account be setup with one of the supported DDNS service
provider prior to engaging it on the router. This function will not work without an accepted
account with a DDNS service provider.