TCP-Listen Port

Dear all,
Someone could explain me the functionality of the TCP-Listen Port in a DigiOne/PortServer device? for me it is impossible to find any references in the documentation however it appears in the digi driver.

Where are you finding this setting? What port does it say it’s listening on?

In the RealPort Driver (Control Panel):
Advanced Properties->Network->Device Network Location where you can choose between ‘IP Address’, ‘MAC Addr’, ‘Hostname’ or ‘Others’. In the last one you can set the TCP-Listen Port.

This option is for future implementation and it is not supported yet. Though this option has been added into the RealPort driver, the corresponding changes to firmware in the Digi devices have not yet been implemented.