IFWXNetworkSocket::SetPacketFilterOptions Method

Sets options for dynamic packet filtering.

HRESULT SetPacketFilterOptions(
  BOOL fDiscardInbound,
  DWORD Reserved
);

Parameters

fDiscardInbound

[in] Discard-inbound flag. If TRUE, an opening in the packet filter is not created for inbound packets. If FALSE, an opening is created for inbound packets.

Reserved

Reserved for future use. This parameter must be zero.

Return Values

S_OK

The method succeeded.

E_INVALIDARG

Invalid parameter.

FWX_E_TERMINATING

The socket is already closed.

Remarks

This method can be called to restrict the opening of dynamic packet filters for use with this socket object. By default, the Firewall service creates a dynamic filter for communication through this socket. Use this method to avoid opening packet filters for this socket. For example, to limit a connection to internal clients, creation of openings in packet filters for incoming UDP datagrams or incoming TCP connections can be disabled by using this method.