SubnetMask

Describes the subnet mask to be applied for routing for the IP address. The following table summarizes the attributes of the SubnetMask property.

Attribute	Value
Data type	Null-terminated Unicode string
Access	Read/write
Status	Required
Structure	CLUSPROP_SZ
Maximum	None (but see Maximum Property Size.)
Default	NULL

Remarks

The data in the SubnetMask property must be formatted as xxx.xxx.xxx.xxx where xxx represents a decimal number between 0 and 255. The value 255.255.255.255 is not valid.

The CLUSPROP_SZ_DECLARE macro creates a CLUSPROP_SZ structure with an array of the correct size.

Examples

The property value portion of a property list entry for SubnetMask can be set with the following example code.

WCHAR                szSubnetMaskData[] = L"255.255.0.0";
CLUSPROP_SZ_DECLARE( SubnetMaskValue, 
                     sizeof( szSubnetMaskData ) / sizeof( WCHAR ) );

SubnetMaskValue.Syntax.dw = CLUSPROP_SYNTAX_LIST_VALUE_SZ;
SubnetMaskValue.cbLength  = sizeof( szSubnetMaskData );
StringCbCopy( SubnetMaskValue.sz, 
              SubnetMaskValue.cbLength, 
              szSubnetMaskData );

Requirements

Minimum supported client	None supported
Minimum supported server	Windows Server 2008 Enterprise, Windows Server 2008 Datacenter

See also

IP Address Private Properties

CLUSPROP_SZ

CLUSPROP_SZ_DECLARE