Provided by: arpwatch_2.1a15-8_amd64 bug


       massagevendor - convert the ethernet vendor codes master list to arpwatch format


       massagevendor vendorfile


       massagevendor is a program that converts a text file containing ethernet vendor codes into
       a format suitable for use by arpwatch(8) and arpsnmp(8).  The input vendorfile is a master
       text file containing vendor codes. The output is sent to stdout.  Each line of the
       vendorfile is expected to have a six digit hexadecimal vendor code followed by spaces
       followed by the name of the manufacturer.

       All ethernet devices have a unique identifier which includes a vendor code specifying the
       manufacturer of the device. In normal operation arpwatch(8) and arpsnmp(8) use the file
       ethercodes.dat to report this vendor code.  massagevendor is used to generate the
       ethercodes.dat file from text files containing these vendor codes.

       Locations where an ethernet vendor codes master text file can be obtained are given below.


       /usr/share/arpwatch - default location of the ethernet vendor list
       ethercodes.dat - file containing the list of ethernet vendor codes


       arpwatch(8), arpsnmp(8)


       Sources for ethernet vendor codes seen in the wild are


       Useful for comparison or completeness are the
       ethernet vendor codes as assigned
       by the IEEE which can be found at



       Please send bug reports to


       Craig  Leres  of  the  Lawrence  Berkeley  National  Laboratory  Network  Research  Group,
       University of California, Berkeley, CA.

       The current version is available via anonymous ftp:


       This manual page was contributed by Hugo Graumann.