. . "OpenLink's Request Brokers are listening services. OpenLink's 4.x and newer Brokers listen on the TCP port that is passed to the Listen parameter. The Listen parameter appears in the Protocol TCP section of the Session Rules Book. OpenLink's 3.x and 1.x Brokers listen on PortLow. PortLow appears in the Protocol TCP section of the Session Rules Book. OpenLink's Request Brokers also use UDP port 60001 to broadcast license information." . .