There is no default database broker port for a progress database... To network a progress database you need to add the -S parameter and you must specify the port you want the broker to run on (there is no default for it because if you don't specify -S it wont be networked ) . The servers that the broker spawn will uses a default port range but it in the thousands and will open ports in that range. (3000 to 4000 i think). But it the -S port that your client will need to connect to the database.