Site to site IPSec VPN between dynamic ip and static ip ( fortigate)

Posted on 2012-09-14
Last Modified: 2012-10-07
Hi Expert ,

Can you share experience for how to configure  dyndns using fortigate .

Site1 static ip and fortigate 110c
site 2 dynamic ip and fortigate 80c

My question is how to configure ipsec tunnel using dyndns ?

Question by:mgzawmyomin
    LVL 39

    Accepted Solution

    the most common problem is that phase one needs a fixed name or number.
    Using dyndns you can use a name for that part.
    The Phase 2 part is tunnel only, and should work anyway.

    Author Comment

    Hi noci,

    May i have any manual for setup guide ? Thank you for reply

    LVL 39

    Expert Comment

    you can register a name with dyndns ( and keep it up to date)  on the dynamic site. Then the tunnel can be built two way ...

    The other option is to make a roaming tunnel. Then on the static address site you need to tell the remote = , meaning anybody can try to build a tunnel not just the other party.

    I need to lookup some old fortigate manuals for that one.
    LVL 39

    Expert Comment


    Page 646 describes how to setup a phase one. It also mentions a dyndns name as remote host spec.

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