I am in a difficult situation where the isp gives us no access to the router. They say all ports are open and NAT is disabled on the router, and as I understand sme does nat
well, let's clarify..
- you have a router without nat and without any filter on ports/protocols, right?
- you have a SME server in server+gateway mode with a public IP on wan side, right?
- you are installing openvpn on that server
if so, I think you'd not need any portforward..
Ciao
Stefano