TCP/IP identifies a listener protocol address by a port number. Select the port number to use.
Use the standard port number of 1521:
Select this option to listen on the default port of 1521. Oracle Corporation recommends that use this port number for client connections to a database service.
By default, dynamic service registration uses a listener configured with TCP/IP, port 1521.
Use another port number:
Select this option to specify another port to use other than 1521. The listener should be the only piece of software on this computer that is listening on the port you specify.
Note: To have dynamic service registration for a nondefault TCP/IP address, you must configure the LOCAL_LISTENER parameter in the initialization parameter file and resolve the listener name through a naming method.
For more information, see Chapter "Configuring and Administering the Listener" in the Oracle Net Services Administrator's Guide.
Oracle Net Services Configuration Overview
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