By default it wont index. Unless you set it true.
indexAndForward = [true|false]
* Index all data locally, in addition to forwarding it.
* This is known as an "index-and-forward" configuration.
* This attribute is only available for heavy forwarders.
* This attribute is available only at the top level [tcpout] stanza. It cannot be overridden in a target group.
* Defaults to false.
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