filter-weight-identifiers.md

title	description	ms.assetid	topic_type	api_name	api_location	api_type	ms.topic	ms.date
Filter Weight Identifiers (Fwpmu.h)	Filter weight identifiers used by the Base Filtering Engine (BFE) to compute auto-generated filter weights.	73d2e9e0-0d3a-474e-b660-f91675f9000e	apiref	FWPM_AUTO_WEIGHT_BITS FWPM_AUTO_WEIGHT_MAX FWPM_WEIGHT_RANGE_IKE_EXEMPTIONS FWPM_WEIGHT_RANGE_IPSEC FWPM_WEIGHT_RANGE_MAX	fwpmu.h	HeaderDef	reference	05/31/2018

Filter Weight Identifiers

The filter weight identifiers used by the Base Filtering Engine (BFE) to compute auto-generated filter weights are listed below.

See Filter Weight Assignment for more information on filter weight generation.

FWPM_AUTO_WEIGHT_BITS

(60)

Number of bits used for auto-generated filter weights.

FWPM_AUTO_WEIGHT_MAX

(MAXUINT64 >> 4)

Maximum auto-generated filter weight.

FWPM_WEIGHT_RANGE_IKE_EXEMPTIONS

(0xC)

BFE assigns a weight with this range value to IKE and AuthIP filters.

See IKE/AuthIP Exemptions for more information on IKE/AuthIP filters.

FWPM_WEIGHT_RANGE_IPSEC

(0x0)

BFE assigns a weight with this range value to IPsec policy filters.

FWPM_WEIGHT_RANGE_MAX

(MAXUINT64 >> 60)

Maximum allowed filter weight range value.

Note

MAXUINT64 represents the largest possible value of UINT64. The value of this constant is 0xFFFFFFFFFFFFFFFF.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Header	Fwpmu.h