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Audit Filtering Platform Connection

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Applies To: Windows 7, Windows 8.1, Windows Server 2008 R2, Windows Server 2012 R2, Windows Server 2012, Windows 8

This topic for the IT professional describes the Advanced Security Audit policy setting, Audit Filtering Platform Connection, which determines whether the operating system generates audit events when connections are allowed or blocked by the Windows Filtering Platform.

Windows Filtering Platform (WFP) was introduced in Windows Server 2008 and Windows Vista to enable independent software vendors (ISVs) to filter and modify TCP/IP packets, monitor or authorize connections, filter Internet Protocol security (IPsec)-protected traffic, and filter remote procedure calls (RPCs).

This security policy enables you to audit the following types of actions:

  • The Windows Firewall service blocks an application from accepting incoming connections on the network.

  • The Windows Filtering Platform allows or blocks a connection.

  • The Windows Filtering Platform permits or blocks a bind to a local port.

  • The Windows Filtering Platform permits or blocks an application or service from listening for incoming connections on a port.

Event volume: High

Default: Not configured

If this policy setting is configured, the following events appear on computers running the supported versions of the Windows operating system as designated in the Applies to list at the beginning of this topic, in addition to Windows Server 2008 and Windows Vista.

Event ID

Event message

5031

The Windows Firewall Service blocked an application from accepting incoming connections on the network.

5140

A network share object was accessed.

Note

This event is logged only on computers running the supported versions of the Windows operating system as designated in the Applies To list.

5150

The Windows Filtering Platform blocked a packet.

5151

A more restrictive Windows Filtering Platform filter has blocked a packet.

5154

The Windows Filtering Platform has permitted an application or service to listen on a port for incoming connections.

5155

The Windows Filtering Platform has blocked an application or service from listening on a port for incoming connections.

5156

The Windows Filtering Platform has allowed a connection.

5157

The Windows Filtering Platform has blocked a connection.

5158

The Windows Filtering Platform has permitted a bind to a local port.

5159

The Windows Filtering Platform has blocked a bind to a local port.

Advanced Security Audit Policy Settings