9. Auditing
IPsec implementations are not required to support auditing. For the most part, the granularity of auditing is a local matter. However, several auditable events are identified in this document, and for each of these events a minimum set of information that SHOULD be included in an audit log is defined. Additional information also MAY be included in the audit log for each of these events, and additional events, not explicitly called out in this specification, also MAY result in audit log entries. There is no requirement for the receiver to transmit any message to the purported transmitter in response to the detection of an auditable event, because of the potential to induce denial of service via such action.
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