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I'm setting up an ASA 5505 where the ISP provides a dynamic IP address (rarely changes.) I would like to start using some of the services provided by DynDNS such as Custom DNS.

I've come across some information regarding Cisco Routers and DynDNS, but nothing definitive on the ASA platform.

My question is whether I can configure the ASA5505 to update the IP address rather than install the DynDNS Updater software on a machine running on the LAN?

Thanks

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If you're asking if you can get the ASA5505 to "register" with dyndns, the answer is no. Howeve, it appears that someone got a feature request added, though, under Cisco BugID CSCsl46782 . (If you don't have a Cisco service contract, you can't view the details). However, it looks like it has an extremely low priority and I wouldn't expect it to be added anytime soon.

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This is because businesses generally buy ASA devices, and they tend to have static IP services. – Tom O'Connor Dec 30 '11 at 9:02
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I believe the SA500 series has the dyndns feature you are looking for. However that would be more money then installing the dyndns client on a system.

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