úÎvD?      !"#$%&'()*+,-./0123456789:;<=> Safe-Infered 5A class of network addresses that assumes there is a  broadcast concept. ?A class of network headers that assumes a checksum is present. %Returns the checksum from the header  Sets the checksum in the header  Returns a source for the header.  Returns a  destination for the header. HReturns a header with all the same fields except the checksum is zeroed Computes the checksum AComputes the checksum, returns a header with the proper checksum .Used by various layer 4 protocols (UDP, TCP), 3 a pseudo header is needed to compute the checksum 'Returns True iff the checksum is valid      None ?   ?None@ABCD   @ABCDNone  !"#$EFG !"#$#$ !" !"#$EFG Safe-Infered%&'HIJK%&'&'%%&'HIJK Safe-Infered(EThis IPv4 header structure lacks support for options. Ints are used M for most integral data types and the binary instance hands the bit packing. <No warning is provided if a value is trunkated when packed! 6Don'-t fragment, more fragment and reserved flags :For IPv4 addresses. >OA dummy header with zeroed fields except version, header length and TTL (255). ()*+,-./0123456789:;<=>LMNOPQ%&'()*+,-./0123456789:;<=>:;()*+,-./0123456987=<> ( )*+,-./0123456987:;<=>LMNOPQR      !"#$%&!''())*+,-./0123!456789::;<=>?@ABCDEFGHIJKLMN@OPnetwork-data-0.2.1 Data.Header Data.CSumData.TCPData.UDP Data.IPv6Data.IP L3AddresslocalBroadcastglobalBroadcastL3Header getChecksum setChecksumsrcdst zeroChecksumcomputeChecksum fillChecksum pseudoHeadervalidCSumcsum16zeroCSum TCPHeaderTCPHdrsrcPortdstPort seqNumber ackNumber dataOffsetresflags windowSizechecksum urgentPtrTCPPort UDPHeaderUDPHdr payloadLengthUDPPort IPv6HeaderIPv6 IPv4HeaderIPv4Hdr hdrLengthversiontos totalLengthipIDfragmentOffsetttlprotocolsource destinationIPv4FlagResMFDFIPv4IPHeaderIPdummyIPv4Header$fSerializeCSum$fSerializeTCPHeader$fEnum[]$fSerializeAckNumber$fSerializeSeqNumber$fSerializeTCPPort$fSerializeUDPHeader$fSerializeUDPPort$fPrettyUDPPort $fPrettyIPv6$fSerializeIPv6Ext$fSerializeIPv6Header$fSerializeIPv6 $fPrettyIPv4$fL3AddressIPv4IPv4Header$fL3HeaderIPv4HeaderIPv4CSum$fSerializeIPv4Header$fSerializeIPv4