Path: utzoo!attcan!uunet!husc6!spdcc!ftp!nancy From: nancy@ftp.COM (Nancy Connor) Newsgroups: comp.dcom.lans Subject: Ethernet manufacturer codes Message-ID: <192@ftp.COM> Date: 12 May 88 13:26:54 GMT Organization: FTP Software Inc., Cambridge, MA Lines: 60 Posting-Front-End: GNU Emacs 18.47.2 of Thu Aug 13 1987 on ftp (berkeley-unix) I have a table of Ethernet manufacturer codes, which someone has suggested might be of use to others on this list. If you have any corrections or additions to make to the list, please let me know. We use this table in our network analyzer in order to make it easier to determine traffic patterns. If you know that there's only one Western Digital card in PCs on your net, printing the name makes it much easier to catch packets coming from that card without resorting to filters. Note that the last two "codes" are really multicast addresses for DECnet MOP and LAT. Note also that the third "code" from the bottom is a DECnet code (separate from the regular DEC manufacturer code). Usually the first 3 bytes of the Ethernet address are the manufacturer code and the last 3 bytes are the card's serial number. When you use DECnet phase IV, it resets your address so that the first 3 bytes are the DECnet code, and the last 3 bytes are the DECnet node number. -Nancy Connor FTP Software ...!harvard!ftp!nancy nancy@ftp.com struct nameber ether_makers[] = { { 0, (char *)-1 }, /* Do binary search */ { 0x00002a, "TRW" }, { 0x00005a, "S&Koch" }, { 0x000093, "Proteon" }, { 0x0000aa, "XEROX" }, { 0x0000c0, "WDgtl" }, { 0x0000dd, "Gould" }, { 0x000102, "BBN" }, { 0x001700, "Kabel" }, { 0x00dd00, "UBass" }, { 0x020701, "Intrl" }, { 0x02608c, "3COM" }, { 0x02cf1f, "CMC" }, { 0x080002, "Bridge" }, { 0x080005, "Symbl" }, { 0x080009, "HP" }, { 0x080010, "ATT" }, { 0x080014, "Excln" }, { 0x080017, "NSC" }, { 0x08001a, "DG" }, { 0x080020, "Sun" }, { 0x08002b, "DEC" }, { 0x080047, "Sequent" }, { 0x080049, "Univation" }, { 0x08004c, "Encore" }, { 0x08004e, "BICC" }, { 0x080068, "Ridge" }, { 0x08006e, "Excln" }, { 0x080089, "Kinetics" }, { 0x08008b, "Pyramid" }, { 0x08008d, "XyVision" }, { 0xaa0004, "DECNt" }, { 0xab0000, "MOP*" }, { 0xab0003, "LAT*" }, { 0, 0 }, };