[Solved] VPN-SSL listening on DMZ port, WAN is private IP = Error

Hi All,

I'm in a "specific" case where my WAN interface IP is private (I'm into a metropolitan network) and used only for interconnect my networks using static routes.

My DMZ Public Subnet is on "DMZ" interface/Vlan. I use SSL-VPN in Web and Tunnel mode. SSL-VPN is listening on DMZ Interface. In this case, when i'm in the WAN Side, I can connect to the web ssl, put my login and password and after a successfull login i've a white page: (https://myforti.mydomain.net/sslvpn/portal.html)... With Forticlient SSL, it return an empty error after few seconds.

When located in a LAN subnet, it is working as expected. VPN Connection to private WAN interface IP work too (but i need to be located into the MAN, can't work from WAN because private IP)

I suspect an internal routing anomaly. Do you have a solution without using Vdom?

Regards