Product Manual
Page 142
... update DDNS services changes in the old database into the new one , e.g. 1.03B43. When users upgrade DSR's firmware to 1.04B13 or latter, DSR will be swept away when users downgrade firmware from 1.04B13 to the older one . However, all user databases will automatically merge users in the WAN IP... address so that features that allows routers with a DDNS provider such as DynDNS.org, D-Link DDNS, or Oray.net...
... update DDNS services changes in the old database into the new one , e.g. 1.03B43. When users upgrade DSR's firmware to 1.04B13 or latter, DSR will be swept away when users downgrade firmware from 1.04B13 to the older one . However, all user databases will automatically merge users in the WAN IP... address so that features that allows routers with a DDNS provider such as DynDNS.org, D-Link DDNS, or Oray.net...