Logon Logoff Event: 4651

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Account Management » Logon Logoff Event: 4651

Event ID 4651 – An IPsec Main Mode Security Association was established with Certificate Authentication

Event ID 4651
Category Logon/Logoff
Sub-Category Audit IPsec Main Mode
Description An IPsec Main Mode security association was established with certificate authentication.

Event 4651 is generated when an IPsec Main Mode security association is established, without Extended Mode being enabled. Additionally this indicates that certificate authentication was used while establishing this association.

Why does event ID 4651 need to be monitored?

  • This should be monitored for IPsec Main Mode troubleshooting
  • To check if certificate authentication was used when establishing the security association

Pro Tip:

With in-depth reports, real-time alerts, and graphical displays, ADAudit Plus tracks all IPsec security associations, helping you meet your security, operational, and compliance needs with absolute ease.

Event 4651 applies to the following operating systems:

  • Windows 10
  • Windows Server 2016

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