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INetFwPolicy2::UnicastResponsesToMulticastBroadcastDisabled property

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

This property is read/write.

Syntax


HRESULT put_UnicastResponsesToMulticastBroadcastDisabled(
  [in]   NET_FW_PROFILE_TYPE2 profileType,
  [in]   VARIANT_BOOL disabled
);

HRESULT get_UnicastResponsesToMulticastBroadcastDisabled(
  [in]   NET_FW_PROFILE_TYPE2 profileType,
  [out]  VARIANT_BOOL *disabled
);

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

When you pass a profile type obtained from the CurrentProfileTypes property (get_CurrentProfileTypes), make sure that you pass only one profile type to get_UnicastResponsesToMulticastBroadcastDisabled and put_UnicastResponsesToMulticastBroadcastDisabled. Note that get_CurrentProfileTypes can return multiple profiles.

Requirements

Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Header	FirewallAPI.h
DLL	Wfapi.dll

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