configure dynamic dns in ASA5505

Unanswered Question
Aug 6th, 2010


I have Asa 5505 conected to link ADSL the public ip address is dinamic,

I create one domain in DYNDNS and I configured ddns in the asa to conect by name of domain

I have configured it in the router whit http method and this work fine, but in the asa don't work

this is the configuration of the ASA to DDNS

ddns update method mytest

ddns both


interface Vlan2

nameif outside

security-level 0

ddns update hostname

ddns update mytest

pppoe client vpdn group ISP

ip address pppoe setroute


dns domain-lookup inside

dns domain-lookup outside

dns server-group DefaultDNS




I have this problem too.
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mirober2 Wed, 08/18/2010 - 19:28

Hi Angel,

Unfortunately, the ASA only currently supports DDNS updates using RFC 2136 and does not support the HTTP-based updates that DynDNS uses. However, there is an enhancement request filed for this (CSCsl46782). You can use this link to follow the status of the enhancement:

Enhancement feature for Dynamic DNS using http-based updates:

Hope that helps.


onyekatabansi Mon, 12/16/2013 - 04:17

Hi Guys,

I know its been a few years but has anyone managed to get the ASA 5505 working with one of the free DDNS providers?


jas2061461 Fri, 12/27/2013 - 18:34

Haven't tried it yet.  I ordered an ASA5505 yesterday and hope to use DynDNS for it.  If not, I'll have to place a home router, or an 1841 in front of it to get it to work.  I'll update this page if it works or not.


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