I'm on a corporate computer that is behind a very restrictive firewall, and trying to connect to my home computer. I configured my router to forward port 80 to 3389 (RDP port). My idea was to try to connect with port 80 since the regular RDP port might be blocked. However I found out that it's not working. RDP on port 80 is blocked as well.
My router's IP address is not blocked, since I can access the config interface on
<router IP address>:8080 . Remote Desktop itself also works for connections to hosts within the internal domain.
I was wondering how are they blocking that kind of traffic (RDP on port 80 towards external IPs)? What kind of firewall rule is used?