Create Asa 5505 VPN with DynDns

Posted on 2009-02-16
Last Modified: 2012-05-06
i would know if a possible create a VPN "client to site" wiht my Asa 5505.
This is my configuration:
internet with dynamic IP address --> router atlantis --> Asa 5505 --> lan pc
Can i create a vpn client to site with my asa 5505?
Must i use dyndns on my atlantis router or on Asa 5505?
thank a lot
Question by:Dampyr
    LVL 29

    Accepted Solution

    Hello Dampyr,
        Cisco ASA can not register to Dynamic DNS services. You either have to configure atlantis router in routed mode and DDNS to register to dyndns, then forward possibly all ports (Some routers/modems call it BIMAP) or one-to-one map or at least forward UDP 4500, UDP 500 and TCP 10000 to ASA outside interface, or configure atlantis in bridged mode, let ASA outside interface get the public IP and install a DynDNS client on one of the computers located inside (a long time up server would be better) and let it do the registeration work.



    Expert Comment


    There actually is a solution described in the following thread on the DynDNS forum:


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