What is WinpkFilter©? Installation Structures [30] _ADAPTER_EVENT _ADAPTER_MODE _DATA_LINK_LAYER_FILTER _ETH_802_3_FILTER _ETH_M_REQUEST _ETH_REQUEST _INTERMEDIATE_BUFFER _IP_ADDRESS_V4 _IP_ADDRESS_V6 _IP_RANGE_V4 _IP_RANGE_V6 _IP_SUBNET_V4 _IP_SUBNET_V6 _IP_V4_FILTER _IP_V6_FILTER _NDISRD_ETH_Packet _NETWORK_LAYER_FILTER _PACKET_OID_DATA _PORT_RANGE _RAS_LINK_INFO _RAS_LINKS _STATIC_FILTER _STATIC_FILTER_TABLE _TCP_AdapterList _TCPUDP_FILTER _TRANSPORT_LAYER_FILTER _FAST_IO_WRITE_UNION _FAST_IO_SECTION_HEADER _FAST_IO_SECTION _INITIALIZE_FAST_IO_PARAMS C interface [39] CloseFilterDriver ConvertWindows2000AdapterName ConvertWindows9xAdapterName ConvertWindowsNTAdapterName FlushAdapterPacketQueue GetAdapterMode GetAdapterPacketQueueSize GetAdaptersStartupMode GetDriverVersion GetHwPacketFilter GetMTUDecrement GetPacketFilterTable GetPacketFilterTableResetStats GetPacketFilterTableSize GetRasLinks GetTcpipBoundAdaptersInfo IsDriverLoaded NdisrdRequest OpenFilterDriver ReadPacket ReadPackets ResetPacketFilterTable SendPacketsToAdapter SendPacketsToMstcp SendPacketToMstcp SendPacketToAdapter SetAdapterMode SetAdapterListChangeEvent SetAdaptersStartupMode SetHwPacketFilter SetHwPacketFilterEvent SetMTUDecrement SetPacketFilterTable SetPacketEvent SetWANEvent InitializeFastIo ReadPacketsUnsorted SendPacketsToAdaptersUnsorted SendPacketsToMstcpUnsorted C++ interface [38] CNdisApi ConvertWindows2000AdapterName ConvertWindows9xAdapterName ConvertWindowsNTAdapterName FlushAdapterPacketQueue GetAdapterMode GetAdapterPacketQueueSize GetAdaptersStartupMode GetHwPacketFilter GetMTUDecrement GetPacketFilterTable GetPacketFilterTableResetStats GetPacketFilterTableSize GetRasLinks GetTcpipBoundAdaptersInfo GetVersion IsDriverLoaded NdisrdRequest ReadPacket ReadPackets ResetPacketFilterTable SendPacketsToAdapter SendPacketsToMstcp SendPacketToMstcp SendPacketToAdapter SetAdapterMode SetAdapterListChangeEvent SetAdaptersStartupMode SetHwPacketFilter SetHwPacketFilterEvent SetMTUDecrement SetPacketFilterTable SetPacketEvent SetWANEvent InitializeFastIo ReadPacketsUnsorted SendPacketsToAdaptersUnsorted SendPacketsToMstcpUnsorted .NET interface [1] NetworkAdapter Class Home / Documentation / WinpkFilter API Reference / C++ interface GetMTUDecrement static DWORD CNdisApi::GetMTUDecrement (); Return Value: Current system wide MTU decrement Parameters: None Remarks: Note that if you have not rebooted after calling SetMTUDecrement the return value in meaningless. Doc navigation < GetHwPacketFilter GetPacketFilterTable >