In Tunneling page, you can set TCP/IP, Dynamic forwarding and X11 Forwarding rules. For these options to take effect, connection protocol must be set to SSH in Connection.

Opens the Forwarding Rule dialog box. It allows you to add a new TCP/IP forwarding rule for this session. Currently open sessions are not affected by the new forwarding rule. To apply it, close and open the session again. To apply the changes dynamically, refer to Tunneling bar.

Opens the Forwarding Rule dialog box and allows you to change the values of the rule selected in the list. The modified values are not applied to the currently open session. To apply it, close and open the session again. To apply the changes dynamically, refer to Tunneling bar.

Removes the forwarding rule selected in the list. The changes are not applied to the currently open session. To apply it, close and open the session again. To apply the changes dynamically, refer to Tunneling bar.

Select this check box to use the X11 Forwarding feature. It requires that the SSH server also supports this feature. And a PC X server program such as Xmanager should be installed in your PC.

Xmanager

Select Xmanager if it is installed in your PC. The Xshell will run Xmanager automatically when an X11 connection arrives. It also detects the display number of Xmanager automatically and you don't have to configure it manually.

X DISPLAY

Select this option if the PC X server installed in your PC is not Xmanager. You need to enter the DISPLAY variable used by the PC X server into the text box. If the PC X server uses a TCP port 6000, just enter ¡±localhost:0.0¡± as the value, and it will work in most cases.