Event ID: 4961

IPsec dropped an inbound packet that failed a replay check

IPsec dropped an inbound packet that failed a replay check. If this problem persists, it could indicate a replay attack against this computer.

Remote Network Address: %1
Inbound SA SPI:     %2

Auditing: Conditional

Volume: Low

Lookup Audit Policy Configuration Settings


  C:\> AuditPol.exe /get  /subcategory:"IPsec Driver"

How to enable Windows Auditing

Recommended Audit Policy

Operating Systems:

Windows Vista Windows 2008 Windows 2008 R2 Windows 7 Windows 2012 Windows 2012 R2 Windows 8 Windows 8.1 Windows 10 Windows 2016 Windows 2019 Windows 11 Windows 2022

Audit Category:

System

Audit Subcategory:

IPsec Driver

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