INetFwProfile::UnicastResponsesToMulticastBroadcastDisabled property (Windows)

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INetFwProfile::UnicastResponsesToMulticastBroadcastDisabled property

Applies to: desktop apps only

Indicates whether the firewall should not allow unicast responses to multicast and broadcast traffic.

This property is read/write.

Syntax

C++


HRESULT put_UnicastResponsesToMulticastBroadcastDisabled(
  [in]   VARIANT_BOOL disabled
);

HRESULT get_UnicastResponsesToMulticastBroadcastDisabled(
  [out]  VARIANT_BOOL *disabled
);


' Data type: Boolean

.UnicastResponsesToMulticastBroadcastDisabled( _
  ByRef disabled, _
  ByVal disabled _
) As Boolean

Property value

True if the firewall should not allow unicast responses to multicast and broadcast traffic.

Error codes

If the method succeeds, the return value is S_OK.

If the method fails, the return value is one of the following error codes.

Name	Meaning
E_ACCESSDENIED	The operation was aborted due to permissions issues.
E_INVALIDARG	The method failed due to an invalid parameter.
E_OUTOFMEMORY	The method was unable to allocate required memory.
E_POINTER	The method failed due to an invalid pointer.

Remarks

If a PC sends a broadcast packet, a unicast response is allowed for three seconds. Use this property to change this behavior.

Requirements

Minimum supported client	Windows Vista, Windows XP with SP2
Minimum supported server	Windows Server 2003 with SP1
Header	Netfw.h
DLL	FirewallAPI.dll; Hnetcfg.dll on Windows XP with SP2