Can we use dyndns feature in Apple Airport Extreme ?

HI I have apple airport extreme , can I use dyndns feature in this to access my DVR througha  port from outside network ?
please advice
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Eoin OSullivanConsultantCommented:
The short answer is yes BUT ONLY if you have an Airport Extreme with older firmware and older version of Airport Utility.
See this article 

You configure the Airport Extreme using the Apple Airport Utility application.  Unfortunately Apple decided to drop dyndns  support in the latest version 6 of AirPort Utility .. so you have to download an older version of the Airport Utility software 5.4 or 5.5 or 5.6 and install that on your Mac or Windows PC.

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