Using Dynamic DNS (dyndns.org) with Cisco ASA5500
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05-19-2008 07:08 PM - edited 03-11-2019 05:47 AM
Hello, has anyone figured out how to implement Dynamic DNS on a Cisco ASA5500? I had it working on my 871W router and have replaced it with an ASA for advanced SSL VPN functions but does not appear to fully support Dynamic DNS updates. Any help would be great!!
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05-20-2008 07:33 AM
try this link out:-
http://www.cisco.com/en/US/docs/security/asa/asa72/configuration/guide/dhcp.html#wp1091527
HTH.

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05-20-2008 07:54 AM
Ran into this before...ended up using the dyndns updater utility running on a host machine on the inside network.

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05-20-2008 07:59 AM
Cool..
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05-20-2008 08:04 AM
Thanks guys, appreciate the info. Still going to try and play with the DDNS as I do see the ASA trying to reach out to DynDns.org however it keeps getting "Refused" messages in the "debug ddns" output. Odd, the provider does not see any of it. The gotcha is that you have to put this big long HTML string into the device that includes username, password, etc..
