The Request Broker port appears in the Session Rules Book.
This is the oplrqb.ini file that appears in the /bin sub-directory of the user's server components installation.
Users need to open this file with a text editor and locate the following section:
[Protocol TCP] PingWatchdog = No PingInterval = 600 Listen = 5000 PortLow = 5000 PortHigh = 5099 IPAddress = 127.0.0.1
OpenLink? 's 4.x and 5.x Brokers listen on the port passed by the Listen parameter.
OpenLink? 's 1.x and 3.x Brokers listen on the initial port as specified by the PortLow? parameter.