SoftEther VPN User Forum

My vpn server is behind a router. What port(s) do I need to forward in the router? I am using SSTP and L2RPv3. Do I also need to open some ports in the firewall of my server? If yes, what ports? Thanks in advance.

You'll have to open some ports and redirect them directly to the WAN interface of your SE-VPN-server.
Normally you'll need the corresponding ports of the necessary listeners.

Make sure, that your machine has got a clear routing.

Please refer this page.
https://www.softether.org/4-docs/2-howt ... irewall.3F

For SSTP, 443/TCP.