The values for protocol parameters entered for the selected listener protocol are already in use by another listener. The new listener is unable to start due to the conflict. Changing the protocol address settings of the new listener can resolve the conflict.
Re-enter different information
Choose to modify the protocol address endpoints to other values.
Leave the conflicting settings. Starting the listener with conflicting settings will probably fail
Choose to ignore the conflict and continue with configuration. Select this option if you intend to stop the other listener before you start this listener.
Oracle Net Services Configuration Overview
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