VPN site to site static IP to FQDN

youcef.guessad wrote:

Hallo,

 

I have problem I can't set up VPN site to site with two Fortigate, The first has static IP and the second Fotigate has FQDN.

 

When I fix the IP the VPN is UP but when i chnage it to DynDNS the VPN DOWN.

 

Thank you in advance

Might be that you need to fix the static routing or the Peer-ID (if you are using it.).

Ref: Page 1976 FortiOS Handbook for 5.6.4

Also make sure if the FGT can resolve the remote Peer's FQDN.

Hope it helps!

Prab