Oracle Forms 12.2.1.4 + Advanced Queuing. Ports to open in firewall

Hello!

I have integrated a Form with a queue without problemes (Event + trigger WHEN-EVENT-RAISED). 

When the form subscribes to the queue, the corresponding record is displayed in the USER_SUBSCR_REGISTRATIONS view. 

When an item is inserted into the queue, registered subscribers are notified using the connection information in the USER_SUBSCR_REGISTRATIONS.LCOATION_NAME field. 

The LOCATION_NAME field contains the port where Forms is listening for new messages in queue. For example: net8://(ADDRESS=(PROTOCOL=tcp)(HOST=XX.XXX.XXX.XX)(PORT=43897))?PR=0. The port 43897 must be oppenned in the Firewall.

Someone know what is the range port to open in the firewall for Queue -> Forms comunication?