Logon Logoff Event: 4651

Active Directory Auditing Tool

The Who, Where and When information is very important for an administrator to have complete knowledge of all activities that occur on their Active Directory. This helps them identify any desired / undesired activity happening. ADAudit Plus assists an administrator with this information in the form of reports. In real-time, ensure critical resources in the network like the Domain Controllers are audited, monitored and reported with the entire information on AD objects - Users, Groups, GPO, Computer, OU, DNS, AD Schema and Configuration changes with 200+ detailed event specific GUI reports and email alerts.

Logon Logoff » 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