What are the minimum required settings when creating a network input in Splunk?

https://docs.splunk.com/Documentation/Splunk/8.0.5/Admin/Inputsconf

[tcp:// < remote server > : < port > ]

*Configures the input to listen on a specific TCP network port.

*If a < remote server > makes a connection to this instance, the input uses this stanza to configure itself.

*If you do not specify < remote server > , this stanza matches all connections on the specified port.

*Generates events with source set to " tcp: < port > " , for example: tcp:514

*If you do not specify a sourcetype, generates events with sourcetype set to " tcp-raw "