Test Pypcap Code (Environment: Windows, Python2.7)

import pcapimport sysimport stringimport timeimport socketimport struct# Protocols={socket. IPPROTO_TCP: ' TCP ',            #socket. IPPROTO_UDP: ' UDP ',            #socket. IPPROTO_ICMP: ' ICMP '}protocols={    0x00: ' hopopt ',     0x01: ' ICMP ',     0X02: "IGMP",     0x03: "GGP",     0x04: "IP-in-IP" ,     0x05: "ST",     0x06: "TCP",     0x07: "CBT",     0x08: "EGP",     0x09: "IGP",     0x0a: " Bbn-rcc-mon ",     0x0b:" Nvp-ii ",     0x0c:" PUP ",     0x0D: "ARGUS",     0x0e: "Emcon",     0x0f: "XNET",     0x10: "CHAOS",     0x11: "UDP",  &Nbsp;  0x12: "MUX",     0x13: "Dcn-meas",     0x14: "HMP",     0x15: "PRM",     0x16: "XNS-IDP",     0x17: "TRUNK-1",     0x18: "TRUNK-2",     0x19: "LEAF-1",     0x1a: " LEAF-2 ",     0x1b:" RDP ",     0x1c:" IRTP ",     0x1d:" ISO-TP4 ",     0x1e:" Netblt ",     0x1f:" MFE-NSP ",     0x20: "Merit-inp",     0x21: "DCCP",     0x22: "3PC",     0x23: "IDPR",     0x24: "XTP",     0x25: "DDP",     0x26: "Idpr-cmtp",     0x27: "tp++",     0x28: "IL",     0x29: "IPv6",     0x2a: "Sdrp",     0x2b: "IPv6-Route",     0X2C: "Ipv6-frag",     0x2d: "Idrp",     0x2e: "RSVP",     0x2f: "GRE",     0x30: "Mhrp",     0x31: "BNA",     0x32: "ESP",     0X33: "AH",     0x34: "I-nlsp",     0x35: "SWIPE",     0x36: "Narp",     0x37: "MOBILE",     0x38: "TLSP",     0x39: "SKIP",     0x3a: "ipv6-icmp",     0x3b: " Ipv6-nonxt ",     0x3c:" Ipv6-opts ",     0x3d:" host internal  Protocol ",  #any     0x3e:" Cftp ",     0x3f:" Local network ",   #any      0x40: "Sat-expak",     0x41: "Kryptolan",     0x42: "RVD",     0x43: "IPPC",     0x44: "Distributed file  system ",  #any &NBsp;    0x45: "Sat-mon",      0x46: "VISA",      0x47: "IPCU",      0x48: "Cpnx",      0x49: "CPHB",      0X4A: "WSN",      0x4b: "PVP",      0x4c : "Br-sat-mon",      0x4d: "Sun-nd",      0x4e: "WB-MON",      0x4f: "Wb-expak",      0x50: "Iso-ip",      0x51: "Vmtp",      0x52: "Secure-vmtp",      0x53: "VINES",      0x54: "TTP",      0x54: "Iptm",      0x55: "NSFNET-IGP",      0x56: "DGP",      0x57: "TCF",      0x58: "EIGRP",      0x59: "OSPF",      0X5A: "Sprite-rpc",      0X5B: "LARP",      0x5c: "MTP",      0X5D: "ax.25",      0x5e: "Ipip",      0x5f: "MICP",      0x60: "Scc-sp",      0x61: "Etherip",      0x62: "EnCap",      0x63: "",      0x64: "GMTP",      0X65: "IFMP",      0x66: "PNNI",      0x67: "PIM",      0x68: "ARIS",      0x69: "SCPs",      0X6A: "QNX",      0x6b: "a/n",      0x6c: " Ipcomp ",      0x6d:" SNP ",      0x6e:" Compaq-peer ",      0x6f: "Ipx-in-ip",      0x70: "VRRP",      0x71: "PGM",      0x72: "",      0x73: "L2TP",      0x74: "DDX",      0X75: "IATP",      0x76: "STP",      0x77: "SRP ",      0x78:" UTI ",      0x79:" SMP ",      0X7A: "SM",      0x7b: "PTP",      0x7c: "IS-IS over  ipv4 ",      0x7d:" Fire ",      0x7e:" CRTP ",      0x7f: "Crudp",      0x80: "Sscopmce",      0X81: "Iplt",      0x82: "SPS",      0x83: "PIPE",      0x84: "SCTP",      0x85: "FC",      0x86: " Rsvp-e2e-ignore ",      0x87:" Mobility header ",      0x88: "Udplite",     0x89: "Mpls-in-ip",      0x8a: "Manet",      0x8b: " HIP ",      0x8c:" Shim6 ",      0x8d:" Wesp ",      0x8e: "ROHC",  }import socketsocket.inet_ntoadef decode_ip_packet (s):     d={}    d[' Version ']= (Ord (s[0))  & 0xf0)  >> 4     d[' Header_len ']=ord (s[0])  & 0x0f    d[' tos ']=ord (s[1 ])     d[' Total_len ']=socket.ntohs (struct.unpack (' H ', S[2:4]) [0])     d[' Id ']=socket.ntohs (struct.unpack (' H ', S[4:6]) [0])     d[' flags ']= (ORD (s[6])  &  0XE0)  >> 5    d[' Fragment_offset ']=socket.ntohs (struct.unpack (' H ', S[6:8]) [ 0] & 0x1f)     d[' ttl ']=ord (s[8])     d[' protocol ']=ord (s[ 9])     d[' checksum ']=socket.ntohs (struct.unpack (' H ', S[10:12]) [0])     d[' source_address ']= Socket.inet_ntoa (s[12:16])      d[' destination_address ']=socket.inet_ntoa (s[16:20])     if d[' Header_len ']>5:        d[' Options ']=s[20:4* (d[' Header_len ']-5)]    else:         d[' options ']=none    d[' data ']=s[4*d[' Header_len ']:]    return  ddef dumphex (s):     bytes = map (lambda x:  '%.2x '  %  x, map (Ord, s))     for i in xrange (0,len (bytes)/16):         print  '     %s '  % string.join ( BYTES[I*16: (i+1) *16], '   ')         print  '      %s '  % string.join (bytes[(i+1) *16:], '   ') Def print_packet ( data, timestamp):     if not  data:        return    if data[12:14]== ' \x08\x00 ':  #IP   Pack         decoded=decode_ip_packet (data[14:])         print  ' \n%s.%f %s > %s '  %  ( Time.strftime ('%h:%m ',                                                    Time.localtime (timestamp)),                                     timestamp % 60,                                     decoded[' source_address '],                                     decoded[' destination_address ')         for  key in [' version ',  ' Header_len ',  ' tos ',  ' total_len ',  ' id ',                      ' Flags ',  ' Fragment_offset ',  ' ttl ']:             print  '   %s: %d '  %  (Key, decoded[key])          print  '   protocol: %s '  % protocols[decoded[' protocol ']]         print  '   header checksum: %d '  % decoded[' checksum ']          #print   '   data: '           #dumphex (decoded[' data ') if __name__== ' __main__ ':    print  (  Pcap.findalldevs ()  )     for dev in pcap.findalldevs ():         net, mask = pcap.lookupnet (Dev)          PRINT DEV        PRINT NET.__REPR__ ( ), mask.__repr__ ()     p = pcap.pcap ()     net, mask  = pcap.lookupnet (Dev)     try:        for  timestamp, data&Nbsp;in p:            print_packet ( data ,  timestamp)              #print  timestamp ,  len (data)     except KeyboardInterrupt:         print  ('%s '  % sys.exc_type)         print   (' Shutting down ')

Test Pypcap Code (Environment: Windows, Python2.7)