Hi
i have written an article about how to use your MikroTik router as a SSTP VPN server for Windows Always On VPN clients.
The guide incorporates a dedicated hardware firewall to lift the weight of firewalling off the MikroTik router so it can do its single purpose thing (in this scenario).
https://sleepytechbloke.wordpress.com/2 ... ys-on-vpn/
I hope someone will find that interesting or helpful, let me know about your thoughts!