TCP Listener The TCP Listener accepts incoming TCP connections and forwards the TCP stream to a single parser. Facts Class Name org.opennms.netmgt.telemetry.listeners.TcpListener Supported on Minion Yes Parameters Table 1. Optional listener-specific parameters for the TcpListener Parameter Description Default host IP address on which to bind the TCP port. 0.0.0.0 port TCP port number on which to listen. 50000 Listener Reference UDP Listener