Thread Info
  • State Verified Answer
  • Locked Locked
  • Replies 5 replies
  • Subscribers 41 subscribers
  • Views 2044 views
  • Users 0 members are here
Options
Suggested
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

RDP does not work over UDP on port 443

Markus Steinbauer

Hi,

I have a Problem on our new sophos XG Firewall.

It seems that the Firewall is manipulating UDP Packets sent to an OpenVPN connection on Port 443 causing RDP to show a black screen all the Time and not getting the Desktop at all.

Does anybody have an Idea on how to solve that problem.

Current Setting:

PC from DMZ tries to connect via OpenVPN on UDP port 443 to the remote Gateway passing through the XG Firewall and succeeds with the connection.

Afterwards I try to open an RDP to a Server located in the Tunnel - I get the Logon WIndow and it does just show a black screen.

The Rule in the XG Firewall is allowing UDP Traffic on Port 443 to the remote gateway and does not have any Security Features (Webfilter, IPS, TLS Inspection, ...) enabled any more.

Best regards,

Makrus



This thread was automatically locked due to age.
Unfiltered HTML