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http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1036

           Summary: m3ua ANSI 24-bit Point Code byte order
           Product: Wireshark
           Version: 0.99.2
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: Medium
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: xoid@xxxxxx


It seems to be invalid byte order in parsing point codes in
epan/dissectors/packet-mtp3.c:
#define ANSI_NETWORK_MASK          0x0000FF
#define ANSI_CLUSTER_MASK          0x00FF00
#define ANSI_MEMBER_MASK           0xFF0000

Should be:
#define ANSI_NETWORK_MASK          0xFF0000
#define ANSI_CLUSTER_MASK          0x00FF00
#define ANSI_MEMBER_MASK           0x0000FF

rfc33332:

   ANSI 24-bit Point Code:

       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Mask      |    Network    |    Cluster    |     Member    |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

                      |MSB-----------------------------------------LSB|


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