全球MAC地址分配
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MAC地址厂商分配表Index MAC Address Vendor-Name100-00-0C-**-**-**Cisco Systems Inc200-00-0E-**-**-**Fujitsu300-00-75-**-**-**Nortel Networks400-00-95-**-**-**Sony Corp500-00-F0-**-**-**Samsung Electronics 600-01-02-**-**-**3Com700-01-03-**-**-**3Com800-01-30-**-**-**Extreme Networks900-01-42-**-**-**Cisco Systems Inc 1000-01-43-**-**-**Cisco Systems Inc 1100-01-4A-**-**-**Sony Corp1200-01-63-**-**-**Cisco Systems Inc 1300-01-64-**-**-**Cisco Systems Inc 1400-01-81-**-**-**Nortel Networks1500-01-96-**-**-**Cisco Systems Inc 1600-01-97-**-**-**Cisco Systems Inc 1700-01-C7-**-**-**Cisco Systems Inc 1800-01-C9-**-**-**Cisco Systems Inc 1900-01-E6-**-**-**Hewlett Packard2000-01-E7-**-**-**Hewlett Packard2100-02-16-**-**-**Cisco Systems Inc 2200-02-17-**-**-**Cisco Systems Inc 2300-02-4A-**-**-**Cisco Systems Inc 2400-02-4B-**-**-**Cisco Systems Inc 2500-02-5F-**-**-**Nortel Networks2600-02-78-**-**-**Samsung Electronics 2700-02-7D-**-**-**Cisco Systems Inc 2800-02-7E-**-**-**Cisco Systems Inc 2900-02-A5-**-**-**Hewlett Packard3000-02-B3-**-**-**Intel Corporation 3100-02-B9-**-**-**Cisco Systems Inc 3200-02-BA-**-**-**Cisco Systems Inc 3300-02-DC-**-**-**Fujitsu3400-02-EE-**-**-**Nokia3500-02-FC-**-**-**Cisco Systems Inc 3600-02-FD-**-**-**Cisco Systems Inc 3700-03-31-**-**-**Cisco Systems Inc 3800-03-32-**-**-**Cisco Systems Inc 3900-03-42-**-**-**Nortel Networks4000-03-47-**-**-**Intel Corporation 4100-03-4B-**-**-**Nortel Networks4200-03-6B-**-**-**Cisco Systems Inc 4300-03-6C-**-**-**Cisco Systems Inc 4400-03-7F-**-**-**Atheros Communications 4500-03-93-**-**-**Apple Computer4600-03-9F-**-**-**Cisco Systems Inc 4700-03-A0-**-**-**Cisco Systems Inc 4800-03-E3-**-**-**Cisco Systems Inc5000-03-FD-**-**-**Cisco Systems Inc 5100-03-FE-**-**-**Cisco Systems Inc 5200-04-0B-**-**-**3Com5300-04-1F-**-**-**Sony Corp5400-04-23-**-**-**Intel Corporation 5500-04-27-**-**-**Cisco Systems Inc 5600-04-28-**-**-**Cisco Systems Inc 5700-04-38-**-**-**Nortel Networks 5800-04-4D-**-**-**Cisco Systems Inc 5900-04-4E-**-**-**Cisco Systems Inc 6000-04-56-**-**-**Motorola Inc6100-04-5A-**-**-**Linksys6200-04-6B-**-**-**Palm Inc6300-04-6D-**-**-**Cisco Systems Inc 6400-04-6E-**-**-**Cisco Systems Inc 6500-04-80-**-**-**Foundry Networks 6600-04-96-**-**-**Extreme Networks 6700-04-9A-**-**-**Cisco Systems Inc 6800-04-9B-**-**-**Cisco Systems Inc 6900-04-BD-**-**-**Motorola Inc7000-04-C0-**-**-**Cisco Systems Inc 7100-04-C1-**-**-**Cisco Systems Inc 7200-04-DC-**-**-**Nortel Networks 7300-04-DD-**-**-**Cisco Systems Inc 7400-04-DE-**-**-**Cisco Systems Inc 7500-04-E2-**-**-**SMC Networks7600-04-EA-**-**-**Hewlett Packard 7700-05-00-**-**-**Cisco Systems Inc 7800-05-01-**-**-**Cisco Systems Inc 7900-05-02-**-**-**Apple Computer 8000-05-1A-**-**-**3Com8100-05-31-**-**-**Cisco Systems Inc 8200-05-32-**-**-**Cisco Systems Inc 8300-05-5D-**-**-**D-Link Corporation 8400-05-5E-**-**-**Cisco Systems Inc 8500-05-5F-**-**-**Cisco Systems Inc 8600-05-73-**-**-**Cisco Systems Inc 8700-05-74-**-**-**Cisco Systems Inc 8800-05-85-**-**-**Juniper Networks 8900-05-9A-**-**-**Cisco Systems Inc 9000-05-9B-**-**-**Cisco Systems Inc 9100-05-B5-**-**-**Broadcom Corp 9200-05-DC-**-**-**Cisco Systems Inc 9300-05-DD-**-**-**Cisco Systems Inc 9400-06-25-**-**-**Linksys9500-06-28-**-**-**Cisco Systems Inc 9600-06-2A-**-**-**Cisco Systems Inc 9700-06-52-**-**-**Cisco Systems Inc 9800-06-53-**-**-**Cisco Systems Inc 9900-06-5B-**-**-**Dell Inc10300-06-D6-**-**-**Cisco Systems Inc 10400-06-D7-**-**-**Cisco Systems Inc 10500-07-0D-**-**-**Cisco Systems Inc 10600-07-0E-**-**-**Cisco Systems Inc 10700-07-4D-**-**-**Zebra Technologies 10800-07-4F-**-**-**Cisco Systems Inc 10900-07-50-**-**-**Cisco Systems Inc 11000-07-72-**-**-**Alcatel-Lucent 11100-07-84-**-**-**Cisco Systems Inc 11200-07-85-**-**-**Cisco Systems Inc 11300-07-B3-**-**-**Cisco Systems Inc 11400-07-B4-**-**-**Cisco Systems Inc 11500-07-E0-**-**-**Palm Inc11600-07-E9-**-**-**Intel Corporation 11700-07-EB-**-**-**Cisco Systems Inc 11800-07-EC-**-**-**Cisco Systems Inc 11900-08-02-**-**-**Hewlett Packard 12000-08-0E-**-**-**Motorola Inc12100-08-20-**-**-**Cisco Systems Inc 12200-08-21-**-**-**Cisco Systems Inc 12300-08-74-**-**-**Dell Inc12400-08-7C-**-**-**Cisco Systems Inc 12500-08-7D-**-**-**Cisco Systems Inc 12600-08-83-**-**-**Hewlett Packard 12700-08-9A-**-**-**Alcatel-Lucent 12800-08-A3-**-**-**Cisco Systems Inc 12900-08-A4-**-**-**Cisco Systems Inc 13000-08-C2-**-**-**Cisco Systems Inc 13100-08-C7-**-**-**Hewlett Packard 13200-08-E2-**-**-**Cisco Systems Inc 13300-08-E3-**-**-**Cisco Systems Inc 13400-09-11-**-**-**Cisco Systems Inc 13500-09-12-**-**-**Cisco Systems Inc 13600-09-18-**-**-**Samsung Electronics 13700-09-43-**-**-**Cisco Systems Inc 13800-09-44-**-**-**Cisco Systems Inc 13900-09-7B-**-**-**Cisco Systems Inc 14000-09-7C-**-**-**Cisco Systems Inc 14100-09-97-**-**-**Nortel Networks 14200-09-B6-**-**-**Cisco Systems Inc 14300-09-B7-**-**-**Cisco Systems Inc 14400-09-E8-**-**-**Cisco Systems Inc 14500-09-E9-**-**-**Cisco Systems Inc 14600-0A-04-**-**-**3Com14700-0A-27-**-**-**Apple Computer 14800-0A-28-**-**-**Motorola Inc14900-0A-41-**-**-**Cisco Systems Inc 15000-0A-42-**-**-**Cisco Systems Inc15400-0A-8B-**-**-**Cisco Systems Inc 15500-0A-95-**-**-**Apple Computer 15600-0A-B7-**-**-**Cisco Systems Inc 15700-0A-B8-**-**-**Cisco Systems Inc 15800-0A-D9-**-**-**Sony Corp15900-0A-E0-**-**-**Fujitsu16000-0A-F3-**-**-**Cisco Systems Inc 16100-0A-F4-**-**-**Cisco Systems Inc 16200-0A-F7-**-**-**Broadcom Corp 16300-0B-06-**-**-**Motorola Inc 16400-0B-0E-**-**-**Trapeze Networks 16500-0B-45-**-**-**Cisco Systems Inc 16600-0B-46-**-**-**Cisco Systems Inc 16700-0B-5D-**-**-**Fujitsu16800-0B-5F-**-**-**Cisco Systems Inc 16900-0B-60-**-**-**Cisco Systems Inc 17000-0B-85-**-**-**Cisco Systems Inc 17100-0B-86-**-**-**Aruba Networks 17200-0B-AC-**-**-**3Com17300-0B-BE-**-**-**Cisco Systems Inc 17400-0B-BF-**-**-**Cisco Systems Inc 17500-0B-C5-**-**-**SMC Networks 17600-0B-CD-**-**-**Hewlett Packard 17700-0B-DB-**-**-**Dell Inc17800-0B-E1-**-**-**Nokia17900-0B-FC-**-**-**Cisco Systems Inc 18000-0B-FD-**-**-**Cisco Systems Inc 18100-0C-30-**-**-**Cisco Systems Inc 18200-0C-31-**-**-**Cisco Systems Inc 18300-0C-41-**-**-**Linksys18400-0C-43-**-**-**Ralink Tech 18500-0C-85-**-**-**Cisco Systems Inc 18600-0C-86-**-**-**Cisco Systems Inc 18700-0C-CE-**-**-**Cisco Systems Inc 18800-0C-CF-**-**-**Cisco Systems Inc 18900-0C-DB-**-**-**Foundry Networks 19000-0C-E5-**-**-**Motorola Inc 19100-0C-E6-**-**-**Meru Networks 19200-0C-F1-**-**-**Intel Corporation 19300-0C-F7-**-**-**Nortel Networks 19400-0C-F8-**-**-**Nortel Networks 19500-0D-0B-**-**-**Buffalo Inc 19600-0D-28-**-**-**Cisco Systems Inc 19700-0D-29-**-**-**Cisco Systems Inc 19800-0D-54-**-**-**3Com19900-0D-56-**-**-**Dell Inc20000-0D-57-**-**-**Fujitsu20100-0D-65-**-**-**Cisco Systems Inc20300-0D-88-**-**-**D-Link Corporation 20400-0D-93-**-**-**Apple Computer 20500-0D-9D-**-**-**Hewlett Packard 20600-0D-AE-**-**-**Samsung Electronics 20700-0D-BC-**-**-**Cisco Systems Inc 20800-0D-BD-**-**-**Cisco Systems Inc 20900-0D-E5-**-**-**Samsung Electronics 21000-0D-EC-**-**-**Cisco Systems Inc 21100-0D-ED-**-**-**Cisco Systems Inc 21200-0E-07-**-**-**Sony Corp21300-0E-08-**-**-**Linksys21400-0E-0C-**-**-**Intel Corporation 21500-0E-35-**-**-**Intel Corporation 21600-0E-38-**-**-**Cisco Systems Inc 21700-0E-39-**-**-**Cisco Systems Inc 21800-0E-40-**-**-**Nortel Networks 21900-0E-5C-**-**-**Motorola Inc22000-0E-62-**-**-**Nortel Networks 22100-0E-6A-**-**-**3Com22200-0E-7F-**-**-**Hewlett Packard 22300-0E-83-**-**-**Cisco Systems Inc 22400-0E-84-**-**-**Cisco Systems Inc 22500-0E-86-**-**-**Alcatel-Lucent 22600-0E-B3-**-**-**Hewlett Packard 22700-0E-C0-**-**-**Nortel Networks 22800-0E-C7-**-**-**Motorola Inc22900-0E-D6-**-**-**Cisco Systems Inc 23000-0E-D7-**-**-**Cisco Systems Inc 23100-0E-ED-**-**-**Nokia23200-0F-06-**-**-**Nortel Networks 23300-0F-20-**-**-**Hewlett Packard 23400-0F-23-**-**-**Cisco Systems Inc 23500-0F-24-**-**-**Cisco Systems Inc 23600-0F-34-**-**-**Cisco Systems Inc 23700-0F-35-**-**-**Cisco Systems Inc 23800-0F-3D-**-**-**D-Link Corporation 23900-0F-61-**-**-**Hewlett Packard 24000-0F-62-**-**-**Alcatel-Lucent 24100-0F-66-**-**-**Linksys24200-0F-6A-**-**-**Nortel Networks 24300-0F-8F-**-**-**Cisco Systems Inc 24400-0F-90-**-**-**Cisco Systems Inc 24500-0F-9F-**-**-**Motorola Inc24600-0F-B5-**-**-**Netgear24700-0F-BB-**-**-**Nokia24800-0F-C3-**-**-**Palm Inc24900-0F-CB-**-**-**3Com25000-0F-CD-**-**-**Nortel Networks 25100-0F-DE-**-**-**Sony Corp25200-0F-F7-**-**-**Cisco Systems Inc25400-10-07-**-**-**Cisco Systems Inc 25500-10-0B-**-**-**Cisco Systems Inc 25600-10-0D-**-**-**Cisco Systems Inc 25700-10-11-**-**-**Cisco Systems Inc 25800-10-14-**-**-**Cisco Systems Inc 25900-10-18-**-**-**Broadcom Corp26000-10-1F-**-**-**Cisco Systems Inc 26100-10-29-**-**-**Cisco Systems Inc 26200-10-2F-**-**-**Cisco Systems Inc 26300-10-40-**-**-**Intermec Corporation 26400-10-45-**-**-**Nortel Networks 26500-10-4B-**-**-**3Com26600-10-54-**-**-**Cisco Systems Inc 26700-10-55-**-**-**Fujitsu26800-10-5A-**-**-**3Com26900-10-79-**-**-**Cisco Systems Inc 27000-10-7B-**-**-**Cisco Systems Inc 27100-10-83-**-**-**Hewlett Packard 27200-10-8C-**-**-**Fujitsu27300-10-A6-**-**-**Cisco Systems Inc 27400-10-B3-**-**-**Nokia27500-10-DB-**-**-**Juniper Networks 27600-10-E3-**-**-**Hewlett Packard 27700-10-F6-**-**-**Cisco Systems Inc 27800-10-FA-**-**-**Apple Computer 27900-10-FF-**-**-**Cisco Systems Inc 28000-11-0A-**-**-**Hewlett Packard 28100-11-11-**-**-**Intel Corporation 28200-11-1A-**-**-**Motorola Inc28300-11-20-**-**-**Cisco Systems Inc 28400-11-21-**-**-**Cisco Systems Inc 28500-11-24-**-**-**Apple Computer 28600-11-3F-**-**-**Alcatel-Lucent 28700-11-43-**-**-**Dell Inc28800-11-50-**-**-**Belkin Corp28900-11-58-**-**-**Nortel Networks 29000-11-5C-**-**-**Cisco Systems Inc 29100-11-5D-**-**-**Cisco Systems Inc 29200-11-80-**-**-**Motorola Inc29300-11-85-**-**-**Hewlett Packard 29400-11-8B-**-**-**Alcatel-Lucent 29500-11-92-**-**-**Cisco Systems Inc 29600-11-93-**-**-**Cisco Systems Inc 29700-11-95-**-**-**D-Link Corporation 29800-11-9F-**-**-**Nokia29900-11-AE-**-**-**Motorola Inc30000-11-BB-**-**-**Cisco Systems Inc 30100-11-BC-**-**-**Cisco Systems Inc 30200-11-F9-**-**-**Nortel Networks 30300-12-00-**-**-**Cisco Systems Inc30500-12-17-**-**-**Linksys30600-12-1E-**-**-**Juniper Networks 30700-12-25-**-**-**Motorola Inc30800-12-37-**-**-**Texas Instruments 30900-12-3F-**-**-**Dell Inc31000-12-43-**-**-**Cisco Systems Inc 31100-12-44-**-**-**Cisco Systems Inc 31200-12-47-**-**-**Samsung Electronics 31300-12-4B-**-**-**Texas Instruments 31400-12-62-**-**-**Nokia31500-12-79-**-**-**Hewlett Packard31600-12-7F-**-**-**Cisco Systems Inc 31700-12-80-**-**-**Cisco Systems Inc 31800-12-83-**-**-**Nortel Networks31900-12-8A-**-**-**Motorola Inc32000-12-A9-**-**-**3Com32100-12-C9-**-**-**Motorola Inc32200-12-D1-**-**-**Texas Instruments 32300-12-D2-**-**-**Texas Instruments 32400-12-D9-**-**-**Cisco Systems Inc 32500-12-DA-**-**-**Cisco Systems Inc 32600-12-EE-**-**-**Sony Corp32700-12-F0-**-**-**Intel Corporation 32800-12-F2-**-**-**Foundry Networks 32900-12-FB-**-**-**Samsung Electronics 33000-13-02-**-**-**Intel Corporation 33100-13-0A-**-**-**Nortel Networks33200-13-10-**-**-**Linksys33300-13-15-**-**-**Sony Corp33400-13-19-**-**-**Cisco Systems Inc 33500-13-1A-**-**-**Cisco Systems Inc 33600-13-20-**-**-**Intel Corporation 33700-13-21-**-**-**Hewlett Packard33800-13-46-**-**-**D-Link Corporation 33900-13-49-**-**-**ZyXEL Communications 34000-13-5F-**-**-**Cisco Systems Inc 34100-13-60-**-**-**Cisco Systems Inc 34200-13-65-**-**-**Nortel Networks34300-13-70-**-**-**Nokia34400-13-71-**-**-**Motorola Inc34500-13-72-**-**-**Dell Inc34600-13-74-**-**-**Atheros Communications 34700-13-77-**-**-**Samsung Electronics 34800-13-7F-**-**-**Cisco Systems Inc 34900-13-80-**-**-**Cisco Systems Inc 35000-13-92-**-**-**Ruckus Wireless35100-13-A9-**-**-**Sony Corp35200-13-C3-**-**-**Cisco Systems Inc 35300-13-C4-**-**-**Cisco Systems Inc 35400-13-CE-**-**-**Intel Corporation35600-13-F7-**-**-**SMC Networks35700-13-FD-**-**-**Nokia35800-14-04-**-**-**Motorola Inc35900-14-0D-**-**-**Nortel Networks 36000-14-0E-**-**-**Nortel Networks 36100-14-1B-**-**-**Cisco Systems Inc 36200-14-1C-**-**-**Cisco Systems Inc 36300-14-22-**-**-**Dell Inc36400-14-38-**-**-**Hewlett Packard 36500-14-3E-**-**-**Airlink36600-14-51-**-**-**Apple Computer 36700-14-69-**-**-**Cisco Systems Inc 36800-14-6A-**-**-**Cisco Systems Inc 36900-14-6C-**-**-**Netgear37000-14-7C-**-**-**3Com37100-14-9A-**-**-**Motorola Inc37200-14-A7-**-**-**Nokia37300-14-A8-**-**-**Cisco Systems Inc 37400-14-A9-**-**-**Cisco Systems Inc 37500-14-BF-**-**-**Linksys37600-14-C2-**-**-**Hewlett Packard 37700-14-C7-**-**-**Nortel Networks 37800-14-D5-**-**-**Datang Corporation 37900-14-E8-**-**-**Motorola Inc38000-14-F1-**-**-**Cisco Systems Inc 38100-14-F2-**-**-**Cisco Systems Inc 38200-14-F6-**-**-**Juniper Networks 38300-15-00-**-**-**Intel Corporation 38400-15-17-**-**-**Intel Corporation 38500-15-2A-**-**-**Nokia38600-15-2B-**-**-**Cisco Systems Inc 38700-15-2C-**-**-**Cisco Systems Inc 38800-15-2F-**-**-**Motorola Inc38900-15-3F-**-**-**Alcatel-Lucent 39000-15-40-**-**-**Nortel Networks 39100-15-60-**-**-**Hewlett Packard 39200-15-62-**-**-**Cisco Systems Inc 39300-15-63-**-**-**Cisco Systems Inc 39400-15-70-**-**-**Motorola Inc39500-15-99-**-**-**Samsung Electronics 39600-15-9A-**-**-**Motorola Inc39700-15-9B-**-**-**Nortel Networks 39800-15-A0-**-**-**Nokia39900-15-A8-**-**-**Motorola Inc40000-15-B9-**-**-**Samsung Electronics 40100-15-C1-**-**-**Sony Corp40200-15-C5-**-**-**Dell Inc40300-15-C6-**-**-**Cisco Systems Inc 40400-15-C7-**-**-**Cisco Systems Inc 40500-15-DE-**-**-**Nokia40700-15-E9-**-**-**D-Link Corporation 40800-15-F9-**-**-**Cisco Systems Inc 40900-15-FA-**-**-**Cisco Systems Inc 41000-16-01-**-**-**Buffalo Inc41100-16-20-**-**-**Sony Corp41200-16-26-**-**-**Motorola Inc41300-16-32-**-**-**Samsung Electronics 41400-16-35-**-**-**Hewlett Packard 41500-16-46-**-**-**Cisco Systems Inc 41600-16-47-**-**-**Cisco Systems Inc 41700-16-4D-**-**-**Alcatel-Lucent 41800-16-4E-**-**-**Nokia41900-16-60-**-**-**Nortel Networks 42000-16-6B-**-**-**Samsung Electronics 42100-16-6C-**-**-**Samsung Electronics 42200-16-6F-**-**-**Intel Corporation 42300-16-75-**-**-**Motorola Inc42400-16-76-**-**-**Intel Corporation 42500-16-9C-**-**-**Cisco Systems Inc 42600-16-9D-**-**-**Cisco Systems Inc 42700-16-B5-**-**-**Motorola Inc42800-16-B6-**-**-**Linksys42900-16-B8-**-**-**Sony Corp43000-16-BC-**-**-**Nokia43100-16-C7-**-**-**Cisco Systems Inc 43200-16-C8-**-**-**Cisco Systems Inc 43300-16-CA-**-**-**Nortel Networks 43400-16-CB-**-**-**Apple Computer 43500-16-DB-**-**-**Samsung Electronics 43600-16-E0-**-**-**3Com43700-16-EA-**-**-**Intel Corporation 43800-16-EB-**-**-**Intel Corporation 43900-16-F0-**-**-**Dell Inc44000-17-00-**-**-**Motorola Inc44100-17-08-**-**-**Hewlett Packard 44200-17-0E-**-**-**Cisco Systems Inc 44300-17-0F-**-**-**Cisco Systems Inc 44400-17-3F-**-**-**Belkin Corp44500-17-42-**-**-**Fujitsu44600-17-4B-**-**-**Nokia44700-17-59-**-**-**Cisco Systems Inc 44800-17-5A-**-**-**Cisco Systems Inc 44900-17-65-**-**-**Nortel Networks 45000-17-7C-**-**-**D-Link Corporation 45100-17-83-**-**-**Texas Instruments 45200-17-84-**-**-**Motorola Inc45300-17-94-**-**-**Cisco Systems Inc 45400-17-95-**-**-**Cisco Systems Inc 45500-17-9A-**-**-**D-Link Corporation 45600-17-A4-**-**-**Hewlett Packard45800-17-C9-**-**-**Samsung Electronics 45900-17-CB-**-**-**Juniper Networks 46000-17-CC-**-**-**Alcatel-Lucent46100-17-D1-**-**-**Nortel Networks46200-17-D5-**-**-**Samsung Electronics 46300-17-DF-**-**-**Cisco Systems Inc 46400-17-E0-**-**-**Cisco Systems Inc 46500-17-E2-**-**-**Motorola Inc46600-17-E3-**-**-**Texas Instruments 46700-17-E4-**-**-**Texas Instruments 46800-17-E5-**-**-**Texas Instruments 46900-17-E6-**-**-**Texas Instruments 47000-17-E7-**-**-**Texas Instruments 47100-17-E8-**-**-**Texas Instruments 47200-17-E9-**-**-**Texas Instruments 47300-17-EA-**-**-**Texas Instruments 47400-17-EB-**-**-**Texas Instruments 47500-17-EC-**-**-**Texas Instruments 47600-17-EE-**-**-**Motorola Inc47700-17-F2-**-**-**Apple Computer47800-18-0F-**-**-**Nokia47900-18-13-**-**-**Sony Corp48000-18-18-**-**-**Cisco Systems Inc 48100-18-19-**-**-**Cisco Systems Inc 48200-18-2F-**-**-**Texas Instruments 48300-18-30-**-**-**Texas Instruments 48400-18-31-**-**-**Texas Instruments 48500-18-32-**-**-**Texas Instruments 48600-18-33-**-**-**Texas Instruments 48700-18-34-**-**-**Texas Instruments 48800-18-39-**-**-**Linksys48900-18-42-**-**-**Nokia49000-18-4D-**-**-**Netgear49100-18-68-**-**-**Cisco Systems Inc 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73000-1F-DE-**-**-**Nokia73100-1F-DF-**-**-**Nokia73200-1F-E4-**-**-**Sony Corp73300-1F-F3-**-**-**Apple Computer 73400-20-32-**-**-**Alcatel-Lucent 73500-20-40-**-**-**Motorola Inc73600-20-60-**-**-**Alcatel-Lucent 73700-20-75-**-**-**Motorola Inc73800-20-7B-**-**-**Intel Corporation 73900-20-A6-**-**-**Proxim Inc74000-20-AF-**-**-**3Com74100-20-D8-**-**-**Nortel Networks 74200-20-DA-**-**-**Alcatel-Lucent 74300-21-05-**-**-**Alcatel-Lucent 74400-21-08-**-**-**Nokia74500-21-09-**-**-**Nokia74600-21-19-**-**-**Samsung Electronics 74700-21-1B-**-**-**Cisco Systems Inc 74800-21-1C-**-**-**Cisco Systems Inc 74900-21-1E-**-**-**Motorola Inc75000-21-29-**-**-**Linksys75100-21-35-**-**-**Alcatel-Lucent 75200-21-36-**-**-**Motorola Inc75300-21-43-**-**-**Motorola Inc75400-21-4C-**-**-**Samsung Electronics 75500-21-55-**-**-**Cisco Systems Inc 75600-21-56-**-**-**Cisco Systems Inc 75700-21-59-**-**-**Juniper Networks 75800-21-5A-**-**-**Hewlett Packard 75900-21-5C-**-**-**Intel Corporation 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mac地址格式标准MAC地址格式标准。
MAC地址,全称为媒体访问控制地址(Media Access Control Address),是网络设备的唯一标识符,用于在局域网中唯一标识网络设备。
MAC地址通常由48位的十六进制数表示,分为6个字节,每个字节用冒号或者短横线分隔。
在本文中,我们将详细介绍MAC地址的格式标准。
首先,MAC地址由48位二进制数组成,通常以十六进制数表示。
在十六进制表示中,每个字节由两个十六进制数字表示,例如,00-1A-A0-12-45-78。
这种表示方法使得MAC地址更加易读和易记。
其次,MAC地址的前24位由IEEE注册管理机构分配,称为组织唯一标识符(Organizationally Unique Identifier,OUI)。
OUI标识了设备的生产厂商或者供应商,因此不同的厂商拥有不同的OUI。
剩余的24位由设备厂商自行分配,称为扩展标识符(Extension Identifier)。
这种分配方式保证了每个设备的MAC地址在全球范围内的唯一性。
此外,MAC地址的格式标准还包括了一些特殊的地址类型。
广播地址(Broadcast Address)是指MAC地址的所有位都为1,用于向局域网中的所有设备发送数据包。
多播地址(Multicast Address)是指MAC地址的最低有效位为1,用于向局域网中的一组设备发送数据包。
单播地址(Unicast Address)是指MAC 地址的最低有效位为0,用于向局域网中的一个设备发送数据包。
另外,MAC地址的格式标准还规定了一些特殊的格式,例如,FF-FF-FF-FF-FF-FF表示广播地址,01-00-5E-7F-FF-FA表示多播地址。
总之,MAC地址的格式标准是非常重要的,它保证了网络设备在局域网中的唯一标识,保证了数据包的正确传输。
了解MAC地址的格式标准,有助于我们更好地理解和管理局域网中的设备。
希望本文能够对您有所帮助,谢谢阅读!。
mac地址规范MAC地址是网卡的唯一标识符,用于在局域网中识别和路由数据包。
MAC地址由48位二进制数表示,通常以16进制数表示。
MAC地址的规范制定了一些规则和约定,以确保MAC地址的唯一性和可识别性。
1. MAC地址的格式:MAC地址由6个字节组成,格式为XX:XX:XX:XX:XX:XX。
其中,每个字节由2个十六进制数表示,使用冒号(:)进行分隔。
2. 第一个字节的规范:第一个字节的最高位被用作多播(multicast)地址的标志,如果最高位为1,则表示该MAC地址是一个多播地址。
否则,表示是一个单播(unicast)地址。
此外,第一个字节还有一些特定的取值范围,如:- 00-05-69:美国思科公司- 08-00-27:Oracle公司3. 唯一性和全球性:MAC地址在全球范围内必须是唯一的,以确保在局域网中不会出现冲突。
IEEE(电气和电子工程师协会)负责颁发MAC 地址的唯一标识符。
每个MAC地址的前三个字节是由IEEE 进行分配的,称为组织唯一标识符(OUI)。
其他的三个字节由具体设备制造商分配。
4. MAC地址的修改:通过软件手段可以修改MAC地址,这被称为MAC地址伪装。
但是,通常情况下,网卡的MAC地址是固定的,无法修改。
只有某些特殊的硬件或软件可以实现MAC地址的修改。
5. MAC地址过滤:在一些网络设备上,可以启用MAC地址过滤功能,只允许特定的MAC地址通过。
这可以增加网络的安全性,防止未经授权的设备访问网络。
6. MAC地址和IP地址的对应:在局域网中,MAC地址和IP地址是相关联的。
每个局域网设备都有一个唯一的MAC地址和IP地址。
通过ARP(地址解析协议),可以将IP地址与对应的MAC地址进行映射和识别。
7. MAC地址的用途:MAC地址在局域网中有着重要的作用,主要用于数据包的路由和MAC地址表的建立。
路由器通过查找目标MAC地址的方式将数据包发送给目标设备。
交换机通过学习MAC地址和端口的对应关系,建立MAC地址表,实现数据包的转发。
全球MAC地址分配(标准分配,不考虑自己修改的那些)0:0:1 SuperLAN-2U0:0:10 Hughes LAN Systems (formerly Sytek)0:0:11 Tektronix0:0:15 Datapoint Corporation0:0:18 Webster Computer Corporation Appletalk/Ethernet Gateway0:0:1a AMD (?)0:0:1b Novell (now Eagle Technology)0:0:1c JDR Microdevices generic, NE2000 drivers0:0:1d Cabletron0:0:1f Cryptall Communications Corp.0:0:2 BBN (was internal usage only, no longer used)0:0:20 DIAB (Data Intdustrier AB)0:0:21 SC&C (PAM Soft&Hardware also reported)0:0:22 Visual Technology0:0:23 ABB Automation AB, Dept. Q0:0:24 Olicom0:0:29 IMC0:0:2a TRW0:0:2c NRC - Network Resources Corporation - MultiGate Hub1+, Hub2, etc 0:0:32 GPT Limited (reassigned from GEC Computers Ltd)0:0:37 Oxford Metrics Ltd0:0:3b Hyundai/Axil Sun Sparc Station 2 clone0:0:3c Auspex0:0:3d AT&T0:0:3f Syntrex Inc0:0:44 Castelle0:0:46 ISC-Bunker Ramo, An Olivetti Company0:0:48 Epson0:0:49 Apricot Ltd.0:0:4b APT -ICL also reported0:0:4c NEC Corporation0:0:4f Logicraft 386-Ware P.C. Emulator0:0:51 Hob Electronic Gmbh & Co. KG0:0:52 Optical Data Systems0:0:55 AT&T0:0:58 Racore Computer Products Inc0:0:5a SK (Schneider & Koch in Europe and Syskonnect outside of Europe) 0:0:5a Xerox 806 (unregistered)0:0:5b Eltec0:0:5d RCE0:0:5e U.S. Department of Defense (IANA)0:0:5f Sumitomo0:0:61 Gateway Communications0:0:62 Honeywell0:0:63 Hewlett-Packard LanProbe0:0:64 Yokogawa Digital Computer Corp0:0:65 Network General0:0:66 Talaris0:0:68 Rosemount Controls0:0:69 Concord Communications, Inc (although someone said Silicon Graphics) 0:0:6b MIPS0:0:6d Case0:0:6e Artisoft, Inc.0:0:6f Madge Networks Ltd0:0:6f Madge Networks Ltd. Token-ring adapters0:0:73 DuPont0:0:75 Bell Northern Research (BNR)0:0:77 Interphase [Used in other systems, e.g. MIPS, Motorola]0:0:78 Labtam Australia0:0:79 Networth Incorporated [bought by Compaq, used in Netelligent series]0:0:7a Ardent0:0:7b Research Machines0:0:7d Cray Research Superservers,Inc [Also Harris (3M) (old)]0:0:7e NetFRAME multiprocessor network servers0:0:7f Linotype-Hell AG Linotronic typesetters0:0:80 Cray Communications (formerly Dowty Network Services) [Also shows as"Harris (3M) (new)" and/or "Imagen(?)" elsewhere]0:0:81 Synoptics0:0:83 Tadpole Technology [had Optical Data Systems which is wrong accordingto both]0:0:84 Aquila (?), ADI Systems Inc.(?)0:0:86 Gateway Communications Inc. (also Megahertz Corporation?)0:0:87 Hitachi0:0:89 Cayman Systems Gatorbox0:0:8a Datahouse Information Systems0:0:8e Solbourne(?), Jupiter(?) (I've had confirming mail on Solbourne)0:0:9 powerpipes?0:0:92 Unisys, Cogent (both reported)0:0:93 Proteon0:0:94 Asante MAC0:0:95 Sony/Tektronix0:0:97 Epoch0:0:98 Cross Com0:0:99 Memorex Telex Corporations0:0:9f Ameristar Technology0:0:a0 Sanyo Electronics0:0:a2 Wellfleet0:0:a3 Network Application Technology (NAT)0:0:a4 Acorn0:0:a5 Compatible Systems Corporation0:0:a6 Network General (internal assignment, not for products)0:0:a7 Network Computing Devices (NCD) X-terminals0:0:a8 Stratus Computer, Inc.0:0:a9 Network Systems0:0:aa Xerox Xerox machines0:0:ac Conware Netzpartner [had Apollo, claimed incorrect] 0:0:ae Dassault Automatismes et Telecommunications0:0:af Nuclear Data Acquisition Interface Modules (AIM) 0:0:b0 RND (RAD Network Devices)0:0:b1 Alpha Microsystems Inc.0:0:b3 CIMLinc0:0:b4 Edimax0:0:b5 Datability Terminal Servers0:0:b6 Micro-matic Research0:0:b7 Dove Fastnet0:0:bb TRI-DATA Systems Inc. Netway products, 3274 emulators 0:0:bc Allen-Bradley0:0:c Cisco0:0:c0 Western Digital now SMC (Std. Microsystems Corp.)0:0:c1 Olicom A/S0:0:c5 Farallon Computing Inc0:0:c6 HP Intelligent Networks Operation (formerly Eon Systems)0:0:c8 Altos0:0:c9 Emulex Terminal Servers, Print Servers0:0:ca LANcity Cable Modems (now owned by BayNetworks)0:0:cc Densan Co., Ltd.0:0:cd Industrial Research Limited0:0:d0 Develcon Electronics, Ltd.0:0:d1 Adaptec, Inc. "Nodem" product0:0:d2 SBE Inc0:0:d3 Wang Labs0:0:d4 PureData0:0:d7 Dartmouth College (NED Router)0:0:d8 old Novell NE1000's (before about 1987?) (also 3Com)0:0:dd Gould0:0:de Unigraph0:0:e Fujitsu0:0:e1 Hitachi (laptop built-in)0:0:e2 Acer Counterpoint0:0:e3 Integrated Micro Products Ltd0:0:e4 mips?0:0:e6 Aptor Produits De Comm Indust0:0:e8 Accton Technology Corporation0:0:e9 ISICAD, Inc.0:0:ed April0:0:ee Network Designers Limited [also KNX Ltd, a former division]0:0:ef Alantec0:0:f NeXT0:0:f0 Samsung0:0:f2 Spider Communications (Montreal, not Spider Systems)0:0:f3 Gandalf Data Ltd. - Canada0:0:f4 Allied Telesis, Inc.0:0:f6 A.M.C. (Applied Microsystems Corp.)0:0:f8 DEC0:0:fb Rechner zur Kommunikation0:0:fd High Level Hardware (Orion, UK)0:0:ff Camtec Electronics (UK) Ltd.0:10:11 Cisco Systems Cisco 75xx0:10:1f Cisco0:10:2f Cisco Cisco 50000:10:4b 3Com 3C905-TX PCI0:10:79 Cisco 5500 Router0:10:7a Ambicom (was Tandy?)0:10:f6 Cisco0:17:0 Kabel0:1:2 BBN (Bolt Beranek and Newman, Inc.) internal usage (not registered)0:1:43 IEEE 8020:1:63 NDC (National Datacomm Corporation)0:1:68 W&G (Wandel & Goltermann) [incorrect according to W&G] 0:1:c8 Thomas Conrad Corp.0:1:fa Compaq (PageMarq printers)0:20:0 Lexmark (Print Server)0:20:11 Canopus Co Ltd0:20:17 Orbotech0:20:18 Realtek0:20:1a Nbase0:20:25 Control Technology Inc (Industrial Controls and Network Interfaces) 0:20:28 Bloomberg0:20:2b ATML (Advanced Telecommunications Modules, Ltd.)0:20:35 IBM (International Business Machines) mainframes, Etherjetprinters0:20:36 BMC Software0:20:42 Datametrics Corp0:20:45 SolCom Systems Limited0:20:48 Fore Systems Inc0:20:4b Autocomputer Co Ltd0:20:4c Mitron Computer Pte Ltd0:20:56 Neoproducts0:20:61 Dynatech Communications Inc0:20:63 Wipro Infotech Ltd0:20:66 General Magic Inc0:20:67 Node Runner Inc0:20:6b Minolta Co., Ltd Network printers0:20:78 Runtop Inc0:20:8 Cable & Computer Technology0:20:85 3COM SuperStack II UPS management module0:20:8a Sonix Communications Ltd0:20:8b Focus Enhancements0:20:8c Galaxy Networks Inc0:20:94 Cubix Corporation0:20:a5 Newer Technology0:20:a6 Proxim Inc0:20:af 3COM Corporation0:20:b6 Agile Networks Inc0:20:b9 Metricom, Inc.0:20:c Adastra Systems Corp0:20:c5 Eagle NE20000:20:c6 NECTEC0:20:d0 Versalynx Corp. "The One Port" terminal server0:20:d2 RAD Data Communications Ltd0:20:d3 OST (Ouet Standard Telematique)0:20:d8 NetWave0:20:da Xylan0:20:dc Densitron Taiwan Ltd0:20:e0 PreMax PE-200 (PCMCIA NE2000-clone card, sold by InfoExpress) 0:20:e5 Apex Data0:20:ee Gtech Corporation0:20:f6 Net Tek & Karlnet Inc0:20:f8 Carrera Computers Inc0:2:16 ESI (Extended Systems, Inc) print servers0:2:4 Novell NE32000:2:5 Hamilton (Sparc Clones)0:2:88 Global Village (PCcard in Mac portable)0:3:c6 Morning Star Technologies Inc0:40:1 Zero One Technology Co Ltd (ZyXEL?)0:40:10 Sonic Mac Ethernet interfaces0:40:11 Facilities Andover Environmental Controllers0:40:13 NTT Data Communication Systems Corp0:40:14 Comsoft Gmbh0:40:15 Ascom0:40:17 XCd XJet - HP printer server card0:40:1c AST Pentium/90 PC (emulating AMD EISA card)0:40:1f Colorgraph Ltd0:40:20 Pilkington Communication0:40:23 Logic Corporation0:40:25 Molecular Dynamics0:40:26 Melco Inc0:40:27 SMC Massachusetts [Had:Sigma (?), maybe the "S"?] 0:40:28 Netcomm0:40:2a Canoga-Perkins0:40:2b TriGem0:40:2f Xlnt Designs Inc (XDI)0:40:30 GK Computer0:40:32 Digital Communications0:40:33 Addtron Technology Co., Ltd.0:40:36 TribeStar0:40:39 Optec Daiichi Denko Co Ltd0:40:3c Forks, Inc.0:40:41 Fujikura Ltd.0:40:43 Nokia Data Communications0:40:48 SMD Informatica S.A.0:40:4c Hypertec Pty Ltd.0:40:4d Telecomm Techniques0:40:4f Space & Naval Warfare Systems0:40:5 TRENDware International Inc.; Linksys; Simple Net; all three reported0:40:50 Ironics, Incorporated0:40:52 Star Technologies Inc0:40:54 Thinking Machines Corporation0:40:57 Lockheed-Sanders0:40:59 Yoshida Kogyo K.K.0:40:5b Funasset Limited0:40:5d Star-Tek Inc0:40:66 Hitachi Cable, Ltd.0:40:67 Omnibyte Corporation0:40:68 Extended Systems0:40:69 Lemcom Systems Inc0:40:6a Kentek Information Systems Inc0:40:6e Corollary, Inc.0:40:6f Sync Research Inc0:40:72 Applied Innovation0:40:74 Cable and Wireless0:40:76 AMP Incorporated0:40:78 Wearnes Automation Pte Ltd0:40:7f Agema Infrared Systems AB0:40:82 Laboratory Equipment Corp0:40:85 SAAB Instruments AB0:40:86 Michels & Kleberhoff Computer0:40:87 Ubitrex Corporation0:40:88 Mobuis NuBus (Mac) combination video/EtherTalk0:40:8a TPS Teleprocessing Sys. Gmbh0:40:8c Axis Communications AB0:40:8e CXR/Digilog0:40:8f WM-Data Minfo AB0:40:9 Tachibana Tectron Co Ltd0:40:90 Ansel Communications PC NE2000 compatible twisted-pair ethernet cards0:40:91 Procomp Industria Eletronica0:40:92 ASP Computer Products, Inc.0:40:94 Shographics Inc0:40:95 Eagle Technologies [UMC also reported]0:40:96 Telesystems SLW Inc0:40:9a Network Express Inc0:40:9c Transware0:40:9d DigiBoard Ethernet-ISDN bridges0:40:9e Concurrent Technologies Ltd.0:40:9f Lancast/Casat Technology Inc0:40:a4 Rose Electronics0:40:a6 Cray Research Inc.0:40:aa Valmet Automation Inc0:40:ad SMA Regelsysteme Gmbh0:40:ae Delta Controls, Inc.0:40:af Digital Products, Inc. (DPI).0:40:b Crescendo (now owned by Cisco)0:40:b4 3COM K.K.0:40:b5 Video Technology Computers Ltd0:40:b6 Computerm Corporation0:40:b9 MACQ Electronique SA0:40:bd Starlight Networks Inc0:40:c General Micro Systems, Inc.0:40:c1 Bizerba-Werke Wilheim Kraut0:40:c2 Applied Computing Devices0:40:c3 Fischer and Porter Co.0:40:c5 Micom Communications Corp.0:40:c6 Fibernet Research, Inc.0:40:c7 Danpex Corporation0:40:c8 Milan Technology Corp.0:40:cc Silcom Manufacturing Technology Inc0:40:cf Strawberry Tree Inc0:40:d LANNET Data Communications0:40:d2 Pagine Corporation0:40:d4 Gage Talker Corp.0:40:d7 Studio Gen Inc0:40:d8 Ocean Office Automation Ltd0:40:dc Tritec Electronic Gmbh0:40:df Digalog Systems, Inc.0:40:e1 Marner International Inc0:40:e2 Mesa Ridge Technologies Inc0:40:e3 Quin Systems Ltd0:40:e5 Sybus Corporation0:40:e7 Arnos Instruments & Computer0:40:e9 Accord Systems, Inc.0:40:ea PlainTree Systems Inc0:40:ed Network Controls International Inc0:40:f0 Micro Systems Inc0:40:f1 Chuo Electronics Co., Ltd.0:40:f4 Cameo Communications, Inc.0:40:f5 OEM Engines0:40:f6 Katron Computers Inc0:40:f9 Combinet0:40:fa Microboards Inc0:40:fb Cascade Communications Corp.0:40:fd LXE0:40:ff Telebit Corporation Personal NetBlazer0:4:0 Lexmark (Print Server)0:4:ac IBM PCMCIA Ethernet adapter.0:4f:49 Realtek0:4f:4b Pine Technology Ltd.0:50:4d Repotec Group0:50:4e UMC UM9008 NE2000-compatible ISA Card for PC 0:5:2 Apple (PCI bus Macs)0:5:9a PowerComputing (Mac clone)0:5:a8 PowerComputing Mac clones0:60:25 Active Imaging Inc.0:60:2f Cisco0:60:3e Cisco 100Mbps interface0:60:47 Cisco0:60:52 Realtek (RTL 8029 == PCI NE2000)0:60:5c Cisco0:60:67 Acer Lan0:60:70 Cisco routers (2524 and 4500)0:60:8 3Com Found in a 3Com PCI form factor 3C905 TX board0:60:83 Cisco Systems, Inc. 3620/3640 routers0:60:8c 3Com (1990 onwards)0:60:9 Cisco Catalyst 5000 Ethernet switch0:60:94 AMD PCNET PCI0:60:97 3Com0:60:b0 Hewlett-Packard0:6:29 IBM RISC6000 system0:6:7c Cisco0:6:c1 Cisco0:6:d Hewlett-Packard JetDirect token-ring interfaces0:7:1 Racal-Datacom0:7:d Cisco 2511 Token Ring0:80:0 Multitech Systems Inc0:80:1 Periphonics Corporation0:80:10 Commodore0:80:12 IMS Corp. IMS failure analysis tester0:80:13 Thomas Conrad Corp.0:80:15 Seiko Systems Inc0:80:16 Wandel & Goltermann0:80:17 PFU0:80:19 Dayna Communications "Etherprint" product0:80:1a Bell Atlantic0:80:1b Kodiak Technology0:80:1c Cisco0:80:21 Newbridge Networks Corporation0:80:23 Integrated Business Networks0:80:24 Kalpana0:80:26 Network Products Corporation0:80:29 Microdyne Corporation0:80:2a Test Systems & Simulations Inc0:80:2c The Sage Group PLC0:80:2d Xylogics, Inc. Annex terminal servers0:80:2e Plexcom, Inc.0:80:33 Formation (?)0:80:34 SMT-Goupil0:80:35 Technology Works0:80:37 Ericsson Business Comm.0:80:38 Data Research & Applications0:80:3b APT Communications, Inc.0:80:3d Surigiken Co Ltd0:80:3e Synernetics0:80:3f Hyundai Electronics0:80:4 Antlow Computers, Ltd.0:80:42 Force Computers0:80:43 Networld Inc0:80:45 Matsushita Electric Ind Co0:80:46 University of Toronto0:80:48 Compex, used by Commodore and DEC at least 0:80:49 Nissin Electric Co Ltd0:80:4c Contec Co., Ltd.0:80:4d Cyclone Microsystems, Inc.0:80:5 Cactus Computer Inc.0:80:51 ADC Fibermux0:80:52 Network Professor0:80:57 Adsoft Ltd0:80:5a Tulip Computers International BV0:80:5b Condor Systems, Inc.0:80:5c Agilis(?)0:80:5f Compaq Computer Corporation0:80:6 Compuadd Corporation0:80:60 Network Interface Corporation0:80:62 Interface Co.0:80:63 Richard Hirschmann Gmbh & Co0:80:64 Wyse0:80:67 Square D Company0:80:69 Computone Systems0:80:6a ERI (Empac Research Inc.)0:80:6b Schmid Telecommunication0:80:6c Cegelec Projects Ltd0:80:6d Century Systems Corp.0:80:6e Nippon Steel Corporation0:80:6f Onelan Ltd0:80:7 Dlog NC-Systeme0:80:71 SAI Technology0:80:72 Microplex Systems Ltd0:80:74 Fisher Controls0:80:79 Microbus Designs Ltd0:80:7b Artel Communications Corp.0:80:7c FiberCom0:80:7d Equinox Systems Inc0:80:82 PEP Modular Computers Gmbh0:80:86 Computer Generation Inc.0:80:87 Okidata0:80:8a Summit (?)0:80:8b Dacoll Limited0:80:8c Frontier Software Development0:80:8d Westcove Technology BV0:80:8e Radstone Technology0:80:9 Jupiter Systems (older MX-600 series machines)0:80:90 Microtek International Inc0:80:92 Japan Computer Industry, Inc.0:80:93 Xyron Corporation0:80:94 Sattcontrol AB0:80:96 HDS (Human Designed Systems) X terminals0:80:98 TDK Corporation0:80:9a Novus Networks Ltd0:80:9b Justsystem Corporation0:80:9d Datacraft Manufactur'g Pty Ltd0:80:9f Alcatel Business Systems0:80:a1 Microtest0:80:a3 Lantronix (see also 0800A3)0:80:a6 Republic Technology Inc0:80:a7 Measurex Corp0:80:ad CNet Technology Used by Telebit (among others) 0:80:ae Hughes Network Systems0:80:af Allumer Co., Ltd.0:80:b1 Softcom A/S0:80:b2 NET (Network Equipment Technologies)0:80:b6 Themis corporation0:80:ba Specialix (Asia) Pte Ltd0:80:c0 Penril Datability Networks0:80:c2 IEEE 802.1 Committee0:80:c6 Soho0:80:c7 Xircom, Inc.0:80:c8 D-Link (also Solectek Pocket Adapters, and LinkSys PCMCIA) 0:80:c9 Alberta Microelectronic Centre0:80:ce Broadcast Television Systems0:80:d V osswinkel FU0:80:d0 Computer Products International0:80:d3 Shiva Appletalk-Ethernet interface0:80:d4 Chase Limited0:80:d6 Apple Mac Portable(?)0:80:d7 Fantum Electronics0:80:d8 Network Peripherals0:80:da Bruel & Kjaer0:80:e0 XTP Systems Inc0:80:e3 Coral (?)0:80:e7 Lynwood Scientific Dev Ltd0:80:ea The Fiber Company0:80:f SMC (Standard Microsystem Corp.)0:80:f0 Kyushu Matsushita Electric Co0:80:f1 Opus0:80:f3 Sun Electronics Corp0:80:f4 Telemechanique Electrique0:80:f5 Quantel Ltd0:80:f7 Zenith Communications Products0:80:fb BVM Limited0:80:fe Azure Technologies Inc0:8:52 Technically Elite Concepts0:8:55 Fermilab0:8:c7 Compaq0:a0:0 Bay Networks Ethernet switch0:a0:24 3com0:a0:40 Apple (PCI Mac)0:a0:92 Intermate International [LAN printer interfaces]0:a0:c9 Intel (PRO100B cards)0:a0:cc MacSense 100Base-TX Adapter for Mac Also seen in PCs (?) 0:a0:d1 National Semiconductor [COMPAQ Docking Station]0:a0:d2 Allied Telesyn0:aa:0 Intel0:b0:d0 Computer Products International0:c0:0 Lanoptics Ltd0:c0:1 Diatek Patient Managment0:c0:11 Interactive Computing Devices0:c0:12 Netspan Corp0:c0:13 Netrix0:c0:14 Telematics Calabasas0:c0:15 New Media Corp0:c0:16 Electronic Theatre Controls0:c0:17 Fluke0:c0:18 Lanart Corp0:c0:1a Corometrics Medical Systems0:c0:1b Socket Communications0:c0:1c Interlink Communications Ltd.0:c0:1d Grand Junction Networks, Inc.0:c0:1f S.E.R.C.E.L.0:c0:2 Sercomm Corporation0:c0:20 Arco Electronic, Control Ltd.0:c0:21 Netexpress0:c0:23 Tutankhamon Electronics0:c0:24 Eden Sistemas De Computacao SA0:c0:25 Dataproducts Corporation0:c0:27 Cipher Systems, Inc.0:c0:28 Jasco Corporation0:c0:29 Kabel Rheydt AG0:c0:2a Ohkura Electric Co0:c0:2b Gerloff Gesellschaft Fur0:c0:2c Centrum Communications, Inc.0:c0:2d Fuji Photo Film Co., Ltd.0:c0:2e Netwiz0:c0:2f Okuma Corp0:c0:3 Globalnet Communications0:c0:30 Integrated Engineering B. V.0:c0:31 Design Research Systems, Inc.0:c0:32 I-Cubed Limited0:c0:33 Telebit Corporation0:c0:34 Dale Computer Corporation0:c0:35 Quintar Company0:c0:36 Raytech Electronic Corp0:c0:39 Silicon Systems0:c0:3b Multiaccess Computing Corp0:c0:3c Tower Tech S.R.L.0:c0:3d Wiesemann & Theis Gmbh0:c0:3e Fa. Gebr. Heller Gmbh0:c0:3f Stores Automated Systems Inc0:c0:4 Japan Business Computer Co.Ltd0:c0:40 ECCI0:c0:41 Digital Transmission Systems0:c0:42 Datalux Corp.0:c0:43 Stratacom0:c0:44 Emcom Corporation0:c0:45 Isolation Systems Inc0:c0:46 Kemitron Ltd0:c0:47 Unimicro Systems Inc0:c0:48 Bay Technical Associates0:c0:49 US Robotics Total Control (tm) NETServer Card0:c0:4d Mitec Ltd0:c0:4e Comtrol Corporation0:c0:4f Dell0:c0:5 Livingston Enterprises Inc Portmaster (OEMed by Cayman) 0:c0:50 Toyo Denki Seizo K.K.0:c0:51 Advanced Integration Research0:c0:55 Modular Computing Technologies0:c0:56 Somelec0:c0:57 Myco Electronics0:c0:58 Dataexpert Corp0:c0:59 Nippondenso Corp0:c0:5b Networks Northwest Inc0:c0:5c Elonex PLC0:c0:5d L&N Technologies0:c0:5e Vari-Lite Inc0:c0:6 Nippon Avionics Co Ltd0:c0:60 ID Scandinavia A/S0:c0:61 Solectek Corporation0:c0:63 Morning Star Technologies Inc May be miswrite of 0003C6 0:c0:64 General Datacomm Ind Inc0:c0:65 Scope Communications Inc0:c0:66 Docupoint, Inc.0:c0:67 United Barcode Industries0:c0:68 Philp Drake Electronics Ltd0:c0:69 California Microwave Inc0:c0:6a Zahner-Elektrik Gmbh & Co KG0:c0:6b OSI Plus Corporation0:c0:6c SVEC Computer Corp0:c0:6d Boca Research, Inc.0:c0:6f Komatsu Ltd0:c0:7 Pinnacle Data Systems Inc0:c0:70 Sectra Secure-Transmission AB0:c0:71 Areanex Communications, Inc.0:c0:72 KNX Ltd0:c0:73 Xedia Corporation0:c0:74 Toyoda Automatic Loom Works Ltd0:c0:75 Xante Corporation0:c0:76 I-Data International A-S0:c0:77 Daewoo Telecom Ltd0:c0:78 Computer Systems Engineering0:c0:79 Fonsys Co Ltd0:c0:7a Priva BV0:c0:7b Ascend Communications ISDN bridges/routers0:c0:7d RISC Developments Ltd0:c0:7f Nupon Computing Corp0:c0:8 Seco SRL0:c0:80 Netstar Inc0:c0:81 Metrodata Ltd0:c0:82 Moore Products Co0:c0:84 Data Link Corp Ltd0:c0:85 Canon0:c0:86 The Lynk Corporation0:c0:87 UUNET Technologies Inc0:c0:89 Telindus Distribution0:c0:8a Lauterbach Datentechnik Gmbh0:c0:8b RISQ Modular Systems Inc0:c0:8c Performance Technologies Inc0:c0:8d Tronix Product Development0:c0:8e Network Information Technology0:c0:8f Matsushita Electric Works, Ltd.0:c0:9 KT Technology (s) Pte Inc0:c0:90 Praim S.R.L.0:c0:91 Jabil Circuit, Inc.0:c0:92 Mennen Medical Inc0:c0:93 Alta Research Corp.0:c0:95 Znyx (Network Appliance box); Jupiter Systems (MX-700 series) 0:c0:96 Tamura Corporation0:c0:97 Archipel SA0:c0:98 Chuntex Electronic Co., Ltd.0:c0:9b Reliance Comm/Tec, R-Tec Systems Inc0:c0:9c TOA Electronic Ltd0:c0:9d Distributed Systems Int'l, Inc.0:c0:9f Quanta Computer Inc0:c0:a Micro Craft0:c0:a0 Advance Micro Research, Inc.0:c0:a1 Tokyo Denshi Sekei Co0:c0:a2 Intermedium A/S0:c0:a3 Dual Enterprises Corporation0:c0:a4 Unigraf OY0:c0:a7 SEEL Ltd0:c0:a8 GVC Corporation0:c0:a9 Barron McCann Ltd0:c0:aa Silicon Valley Computer0:c0:ab Jupiter Technology Inc0:c0:ac Gambit Computer Communications0:c0:ad Computer Communication Systems0:c0:ae Towercom Co Inc DBA PC House0:c0:b Norcontrol A.S.0:c0:b0 GCC Technologies,Inc.0:c0:b2 Norand Corporation0:c0:b3 Comstat Datacomm Corporation0:c0:b4 Myson Technology Inc0:c0:b5 Corporate Network Systems Inc0:c0:b6 Meridian Data Inc0:c0:b7 American Power Conversion Corp0:c0:b8 Fraser's Hill Ltd.0:c0:b9 Funk Software Inc0:c0:ba Netvantage0:c0:bb Forval Creative Inc0:c0:bd Inex Technologies, Inc.0:c0:be Alcatel - Sel0:c0:bf Technology Concepts Ltd0:c0:c ARK PC Technology, Inc.0:c0:c0 Shore Microsystems Inc0:c0:c1 Quad/Graphics Inc0:c0:c2 Infinite Networks Ltd.0:c0:c3 Acuson Computed Sonography0:c0:c4 Computer Operational0:c0:c5 SID Informatica0:c0:c6 Personal Media Corp0:c0:c8 Micro Byte Pty Ltd0:c0:c9 Bailey Controls Co0:c0:ca Alfa, Inc.0:c0:cb Control Technology Corporation0:c0:cd Comelta S.A.0:c0:d Advanced Logic Research Inc0:c0:d0 Ratoc System Inc0:c0:d1 Comtree Technology Corporation (EFA also reported) 0:c0:d2 Syntellect Inc0:c0:d4 Axon Networks Inc0:c0:d5 Quancom Electronic Gmbh0:c0:d6 J1 Systems, Inc.0:c0:d9 Quinte Network Confidentiality Equipment Inc0:c0:db IPC Corporation (Pte) Ltd0:c0:dc EOS Technologies, Inc.0:c0:de ZComm Inc0:c0:df Kye Systems Corp0:c0:e Psitech Inc0:c0:e1 Sonic Solutions0:c0:e2 Calcomp, Inc.0:c0:e3 Ositech Communications Inc0:c0:e4 Landis & Gyr Powers Inc0:c0:e5 GESPAC S.A.0:c0:e6 TXPORT0:c0:e7 Fiberdata AB0:c0:e8 Plexcom Inc0:c0:e9 Oak Solutions Ltd0:c0:ea Array Technology Ltd.0:c0:ec Dauphin Technology0:c0:ed US Army Electronic Proving Ground0:c0:ee Kyocera Corporation0:c0:ef Abit Corporation0:c0:f QNX Software Systems Ltd. [also Quantum Software Systems Ltd] 0:c0:f0 Kingston Technology Corporation0:c0:f1 Shinko Electric Co Ltd0:c0:f2 Transition Engineering Inc0:c0:f3 Network Communications Corp0:c0:f4 Interlink System Co., Ltd.0:c0:f5 Metacomp Inc0:c0:f6 Celan Technology Inc.0:c0:f7 Engage Communication, Inc.0:c0:f8 About Computing Inc.0:c0:fa Canary Communications Inc0:c0:fb Advanced Technology Labs0:c0:fc ASDG Incorporated0:c0:fd Prosum0:c0:ff Box Hill Systems Corporation0:dd:0 Ungermann-Bass IBM RT0:dd:1 Ungermann-Bass0:dd:8 Ungermann-Bass0:e0:11 Uniden Corporation0:e0:14 Cisco Ethernet switch0:e0:16 rapid-city (now a part of bay networks)0:e0:1e Cisco Lightstream 10100:e0:29 SMC EtherPower II 10/1000:e0:2c AST - built into 5166M PC motherboard (win95 id's as Intel)0:e0:34 Cisco0:e0:39 Paradyne 7112 T1 DSU/CSU0:e0:4f Cisco0:e0:83 Jato Technologies, Inc.0:e0:8f Cisco Systems Catalyst 29000:e0:98 Linksys PCMCIA card0:e0:a3 Cisco0:e0:b0 Cisco Systems Catalyst 2900/50000:e0:b8 AMD PCNet in a Gateway 20000:e0:c5 BCOM Electronics Inc.0:e0:f7 Cisco0:e0:f9 Cisco0:e0:fe Cisco10:0:5a IBM10:0:90 Hewlett-Packard Advisor products10:0:d4 DEC10:0:e0 Apple A/UX (modified addresses for licensing)2:4:6 BBN internal usage (not registered)2:60:60 3Com2:60:86 Satelcom MegaPac (UK)2:60:8c 3Com IBM PC; Imagen; Valid; Cisco;Macintosh2:7:1 Interlan [now Racal-InterLAN] DEC (UNIBUS or QBUS), Apollo, Cisco 2:7:1 Racal-Datacom2:aa:3c Olivetti2:cf:1f CMC Masscomp; Silicon Graphics; PrimeEXL2:e0:3b Prominet Corporation Gigabit Ethernet Switch2:e6:d3 BTI (Bus-Tech, Inc.) IBM Mainframes2e:2e:2e LAA (Locally Administered Address) for Meditech Systems3c:0:0 3Com dual function (V.34 modem +Ethernet)card40:0:3 Net Ware (?)44:45:53 Microsoft (Windows95 internal"adapters")44:46:49 DFI (Diamond Flower Industries)47:54:43 GTC (Not registered!) (This number is amulticast!)48:44:53 HDS ???48:4c:0 Network Solutions48:54:e8 winbond?4c:42:4c Information Modes software modified addresses (not registered?)52:54:4c Novell 200052:54:ab REALTEK (a Realtek 8029 based PCI Card)56:58:57 Aculab plc audio bridges80:0:10 AT&T [misrepresented as 080010? One source claims this is correct] 80:ad:0 CNET Technology Inc. (Probably an error, see instead 0080AD)8:0:1 Computer Vision8:0:10 AT&T [misrepresentation of 800010?]8:0:11 Tektronix, Inc.8:0:14 Excelan BBN Butterfly, Masscomp, SiliconGraphics8:0:17 National Semiconductor Corp. (used to have Network System Corp., wrongNSC)8:0:1a Tiara? (used to have Data General)8:0:1b Data General8:0:1e Apollo8:0:2 3Com (formerly Bridge)8:0:20 Sun8:0:22 NBI (Nothing But Initials)8:0:23 Matsushita Denso8:0:25 CDC8:0:26 Norsk Data (Nord)8:0:27 PCS Computer Systems GmbH8:0:28 TI Explorer8:0:2b DEC8:0:2e Metaphor8:0:2f Prime Computer Prime 50-Series LHC3008:0:3 ACC (Advanced Computer Communications)8:0:30 CERN8:0:32 Tigan8:0:36 Intergraph CAE stations8:0:37 Fuji Xerox8:0:38 Bull8:0:39 Spider Systems8:0:3b Torus Systems8:0:3d cadnetix8:0:3e Motorola VME bus processor modules8:0:41 DCA (Digital Comm. Assoc.)8:0:44 DSI (DA VID Systems, Inc.)8:0:45 ???? (maybe Xylogics, but they claim not to know this number)8:0:46 Sony8:0:47 Sequent8:0:48 Eurotherm Gauging Systems8:0:49 Univation8:0:4c Encore8:0:4e BICC [3com bought BICC, so may appear on 3com equipment as well] 8:0:5 Symbolics Symbolics LISP machines8:0:51 Experdata8:0:56 Stanford University8:0:57 Evans & Sutherland (?)8:0:58 ??? DECsystem-208:0:5a IBM8:0:6 Siemens Nixdorf PC clone8:0:66 AGFA printers, phototypesetters etc.8:0:67 Comdesign8:0:68 Ridge8:0:69 Silicon Graphics8:0:6a ATTst (?)8:0:6e Excelan8:0:70 Mitsubishi8:0:74 Casio8:0:75 DDE (Danish Data Elektronik A/S)8:0:77 TSL (now Retix)8:0:79 Silicon Graphics8:0:7c Vitalink TransLAN III8:0:8 BBN (Bolt Beranek and Newman, Inc.)8:0:80 XIOS8:0:81 Crosfield Electronics8:0:83 Seiko Denshi8:0:86 Imagen/QMS8:0:87 Xyplex terminal servers8:0:88 McDATA Corporation8:0:89 Kinetics AppleTalk-Ethernet interface8:0:8b Pyramid8:0:8d XyVision XyVision machines8:0:8e Tandem / Solbourne Computer ?8:0:8f Chipcom Corp.8:0:9 Hewlett-Packard8:0:90 Retix, Inc. Bridges8:0:a Nestar Systems8:0:b Unisys8:0:d ICL (International Computers, Ltd.)8:0:e NCR/AT&T8:0:f SMC (Standard Microsystems Corp.)9:0:6a AT&Taa:0:0 DEC obsoleteaa:0:1 DEC obsoleteaa:0:2 DEC obsoleteaa:0:3 DEC Global physical address for some DEC machinesaa:0:4 DEC Local logical address for DECNET systemsc0:0:0 Western Digital (may be reversed 00 00 C0?)ec:10:0 Enance Source Co., Ltd. PC clones(?)。
说IP地址和MAC地址之间有什么关系IP地址和MAC地址是计算机网络中两个重要的概念,它们之间存在着密切的联系和相互作用。
本文将从IP地址和MAC地址的定义、作用以及它们之间的关系三个方面进行论述。
一、IP地址和MAC地址的定义及作用IP地址,即Internet Protocol address,是用来标识和寻址网络中计算机设备的一串数字。
它分为IPv4和IPv6两种格式,其中IPv4地址由32位二进制数组成,而IPv6地址由128位二进制数组成。
IP地址具有全球唯一性和层次性,它可以分为网络地址和主机地址,用于实现网络中计算机和设备之间的通信和数据传输。
MAC地址,即Media Access Control address,是用来标识网络设备的物理地址。
它由48位二进制数组成,通常表示为六组十六进制数,每组用冒号或者短横线隔开。
MAC地址是由网络适配器制造商分配的,它具有全球唯一性,并且在设备制造时即被固化在硬件中,无法更改。
MAC地址通常被用于局域网中设备之间的通信和数据传输。
IP地址和MAC地址在计算机网络中扮演着不同的角色和功能。
IP地址作为逻辑地址,用来进行网络层的路由选择和寻址,它可以表示不同网络之间的连接和通信;而MAC地址作为物理地址,用来进行数据链路层的寻址和数据帧传输,它可以表示设备在局域网中的唯一身份。
二、IP地址和MAC地址之间的关系IP地址和MAC地址之间存在着一种映射和对应关系,可以通过一定的方法将它们联系起来。
在局域网内,当计算机A需要与计算机B进行通信时,首先计算机A会判断计算机B是否在同一局域网内。
如果在同一局域网内,计算机A会通过ARP(Address Resolution Protocol)协议发送ARP请求,广播询问目标计算机的MAC地址。
目标计算机B收到ARP请求后,会通过ARP响应将自己的MAC地址发送给计算机A。
这样,计算机A就获取了计算机B的IP地址和MAC地址的对应关系。
组播MAC地址和各类IP地址MAC地址是以太⽹⼆层使⽤的⼀个48bit(6字节⼗六进制数)的地址,⽤来标识设备位置。
MAC地址分成两部分,前24位是组织唯⼀标识符(OUI, Organizationally unique identifier),后24位由⼚商⾃⾏分配。
MAC地址有单播、组播、⼴播之分。
单播地址(unicast address)表⽰单⼀设备、节点,多播地址或者组播地址(multicast address、group address)表⽰⼀组设备、节点,⼴播地址(broadcast address)是组播的特例,表⽰所有地址,⽤全F表⽰:FF-FF-FF-FF-FF-FF。
当然,三层的IP地址也有单播、组播、⼴播之分。
48bit的MAC地址⼀般⽤6字节的⼗六进制来表⽰,如XX-XX-XX-XX-XX。
IEEE 802.3规定:以太⽹的第48bit(2012-04-11修改为The first bit) ⽤于表⽰这个地址是组播地址还是单播地址。
如果这⼀位是0,表⽰此MAC地址是单播地址,如果这位是1,表⽰此MAC地址是多播地址。
见IEEE 802.3 3.2.3 Address fields:“The first bit (LSB) shall be used in the Destination Address field as an address type designation bit to identify the Destination Address either as an individual or as a group address. If this bit is 0, it shall indicate that the address field contains an individual address. If this bit is 1, it shall indicate that the address field contains a group address that identifies none, one or more, or all of the stations connected to the LAN. In the Source Address field, the first bit is reserved and set to 0.”以太⽹线路上按“Big Endian”字节序传送报⽂(也就是最⾼字节先传送,关于字节序请参考相关⽂档),⽽⽐特序是”Little Endian”(也就是最低位先传送)。
MAC地址MAC地址1212MAC(Media Acc ess Control, 介质访问控制)MAC地址是烧录在N et work Interf ace Card(网卡,NIC)里的.MAC地址,也叫硬件地址,是由48比特长(6字节),16进制的数字组成.0-23位叫做组织唯一标志符(organizationally unique ,是识别LAN(局域网)节点的标识.24-47位是由厂家自己分配。
其中第40位是组播地址标志位。
网卡的物理地址通常是由网卡生产厂家烧入网卡的EPROM(一种闪存芯片,通常可以通过程序擦写),它存储的是传输数据时真正赖以标识发出数据的电脑和接收数据的主机的地址。
也就是说,在网络底层的物理传输过程中,是通过物理地址来识别主机的,它一般也是全球唯一的。
比如,著名的以太网卡,其物理地址是48bit(比特位)的整数,如:44-45-53-54-00-00,以机器可读的方式存入主机接口中。
以太网地址管理机构(除了管这个外还管别的)(I EEE)(I EEEE:电气和电子工程师协会)将以太网地址,也就是48比特的不同组合,分为若干独立的连续地址组,生产以太网网卡的厂家就购买其中一组,具体生产时,逐个将唯一地址赋予以太网卡。
形象的说,MAC地址就如同我们身份证上的身份证号码,具有全球唯一性。
如何获取本机的MAC?对于数量不多的几台机器,我们可以这样获取MAC地址:在W indows 98/Me中,依次单击“开始”→“运行” →输入“winipcf g”→回车。
即可看到MAC地址。
在Windows 2000/XP中,依次单击“开始”→“运行”→输入“C MD”→回车→输入“ipc onf ig /all”→回车。
即可看到MAC地址。
修改网卡MA C地址的方法其实更改网卡MAC地址的功能不论98、2000还是XP,都已经提供了,只是平时大家都没有注意到而以。
下面我就说说怎么更改。
很简单哦。
MAC地址MAC(Media Access Control)地址,或称为MAC位址、硬件位址,用来定义网络设备的位置。
在OSI模型中,第三层网络层负责IP地址,第二层数据链路层则负责MAC位址。
因此一个主机会有一个IP地址,而每个网络位置会有一个专属于它的MAC位址。
1概述MAC地址(MAC Address)MAC(Medium/Media Access Control)地址,用来表示互联网上每一个站点的标识符,采用十六进制数表示,共六个字节(48位)。
其中,前三个字节是由IEEE的注册管理机构RA负责给不同厂家分配的代码(高位24位),也称为“编制上唯一的标识符”(Organizationally Unique Identifier),后三个字节(低位24位)由各厂家自行指派给生产的适配器接口,称为扩展标识符(唯一性)。
一个地址块可以生成2^24个不同的地址。
MAC地址实际上就是适配器地址或适配器标识符EUI-48。
[1]2解释MAC(Medium/MediaAccess Control,介质访问控制)MAC地址是收录在NetworkInterfaceCard(网卡,NIC)里的.MAC地址,也叫硬件地址,是由48比特/bit长(6字节/byte,1byte=8bits),16进制的数字组成.0-23位叫做组织唯一标志符(organizationally unique,是识别LAN(局域网)节点的标识。
24-47位是由厂家自己分配.其中第48位是组播地址标志位。
网卡的物理地址通常是由网卡生产厂家烧入网卡的EPROM(一种闪存芯片,通常可以通过程序擦写),它存储的是传输数据时真正赖以标识发出数据的电脑和接收数据的主机的地址。
也就是说,在网络底层的物理传输过程中,是通过物理地址来识别主机的,它一定是全球唯一的。
比如,著名的以太网卡,其物理地址是48bit(比特位)的整数,如:44-45-53-54-00-00,以机器可读的方式存入主机接口中。
MAC地址分类 ⽹卡MAC地址作为互联⽹设备在以太⽹中⾝份的唯⼀标识在以太⽹通讯中的作⽤⽐IP地址还要重要,MAC地址分成两部分,前24位是组织唯⼀标识符(OUI, Organizationally unique identifier),后24位由⼚商⾃⾏分配。
IP地址⼜称为逻辑地址⽽MAC地址就叫做物理地址,⼀台主机要给另⼀台主机发送数据只知道对⽅的IP地址是不可以的,⽐如路由器下的⼤部分设备的IP地址应该都是192.168.1.xxx的此时就可以看出MAC地址的作⽤,IP的的划分有⼀定的规则(A类,B类等)同样MAC地址也有对应的划分的规则不过相⽐IP地址的分类MAC地址的分类就很简单了。
规则:1. 发送的第⼀个字节的第⼀个⽐特如果为0则为单播地址,反之如果是1则可能会是⼴播或组播地址,他们的区别就是⼴播地址是每⼀个⼀个字节所有的BIT都是1,所以换句话说就是全为1的以太⽹地址为⼴播地址,第⼀个字节0xAB,的B如果为偶数则为单播地址反之如果为奇数则为组播地址。
(2012-04-11)2. 第⼆个BIT表⽰MAC地址是全球唯⼀地址还是本地地址,0表⽰全球唯⼀地址,1表⽰本地唯⼀地址。
这⼀位也叫G/L位。
(2012-04-11)举例:如果MAC地址为00-50-BA-xx-xx-xx第⼀个字节⼆进制表⽰为 0x00000000;其中红⾊⽐特位的值就表⽰此MAC地址为单播地址。
这⾥需要注意的是以太⽹上数据传输字节序是“Big Edian”的⽅式传输的,所以实际上这⾥的00为MAC的6字节中最⾼字节,但是单字节的⽐特顺序是先传低位的所以在以太⽹上看到的数就是0000 0000 ......;同理如果为组播或⼴播地址第⼀个bit就会是1。
同时这还是⼀个全球唯⼀的MAC地址。
最后在别⼈博客看到这样⼀段话,记下来2层的MAC地址是如何与3层的IP地址进⾏映射的呢?通过将MAC地址的前25位强⾏规定位0100.5E,⽽后23位对应IP地址的后23位,⽽组播IP地址的前4位均相同如:IP地址:1110yyyy.yxxxxxxx.xxxxxxx.xxxxxxxxMAC地址:00000001.00000000.01011110.0xxxxxxx.xxxxxxx.xxxxxxxx例如:组播IP地址224.215.145.230应该映射到下列哪个组播MAC地址?( ) (A) 01-00-5e-57-91-e6 (B) 01-00-5e-d7-91-e6 (C) 01-00-5e-5b-91-e6 (D) 01-00-5e-55-91-e6⽤⼆进制来换算,将215.145.230换算成1101,0111,1001,0001,1110,0110,取最后23位放到MAC地址中的23位可以计算得出答案是A。
MAC地址知识介绍MAC(Media Access Control)地址,或称为 MAC位址、硬件位址,用来定义网络设备的位置。
在OSI模型中,第三层网络层负责 IP地址,第二层资料链接层则负责 MAC位址。
因此一个主机会有一个IP地址,而每个网络位置会有一个专属于它的MAC位址。
MAC地址组成MAC地址由48比特长,12个的16进制数字组成,0到23位是厂商向IETF等机构申请用来标识厂商的代码,也称为“编制上唯一的标识符”(Organizationally Unique Identifier),是识别LAN(局域网)结点的标志。
MAC地址的24到47位由厂商自行分派,是各个厂商制造的所有网卡的一个唯一编号。
在OSI模型中,第三层网络层负责 IP 地址,第二层数据链路层则负责 MAC位址。
因此一个网卡会有一个全球唯一固定的MAC 地址,但可对应多个IP地址。
第48位是组播地址标志位。
MAC地址作用MAC地址应用于局域网和广域网中的计算机之间的通信。
在局域网中由于网络的结构相对要简单一些,所以很少涉及到三层交换机,也就是路由器,所以可以用来标识每台主机耳朵就只有MAC地址。
而这种情况下交换机的每一个端口对应的就是一个MAC地址。
当交换机收到数据包之后与自己的MAC表项进行比对,要是发现源主机和目的主机并不在同一个端口,而且MAC表项中没有对应的MAC地址的时候它就按照MAC地址表对数据包进行转发,要是MAC表项中没有对应的目的时候交换机就对所有的端口进行广播(除源端口)。
如果要是广域网之间的计算机实现通信的话,就需要路由器。
而路由器属于三层交换机,也就设计到了ISO七层模型中的网络层,涉及到了IP协议,所以在广域网的计算机之间的通信就要用到IP地址。
在这个时候,MAC地址不仅有用,而且还有着极其重要的作用。
在广域网中的一个主机希望把分组发送给另一个网络上的主机时,它首先要查询自己的路由表,找出到目的主机的下一跳的IP地址,而要仅仅想利用这个IP地址找到所对应的路由器或者主机时不够的,因为要想找到一个路由器的位置我们必须要知道它的物理地址,而源自物理地址的MAC地址就充当了一个找寻路由器的标识。
mac地址规范MAC地址(Media Access Control Address)是用来标识网络设备(如计算机、路由器、交换机等)的硬件地址,它是一个全球唯一的标识符。
MAC地址由48个二进制位组成,通常以6个十六进制数表示,并使用冒号或破折号分隔。
MAC地址规范是指在分配和管理MAC地址时遵循的一些规则和标准。
以下是关于MAC地址规范的一些重要内容:1. 唯一性:MAC地址应是全球唯一的,确保每个网络设备具有唯一的识别标志。
这意味着不同的设备不能有相同的MAC地址。
2. 地址范围:MAC地址的前24位是由IEEE(Institute of Electrical and Electronics Engineers)定义和管理的,称为组织唯一标识符(OUI)。
这个范围用于确定设备的制造商或供应商。
后面的24位由设备制造商分配,用于标识特定设备。
3. 分配管理:MAC地址的分配管理由IEEE下属组织MAC地址分配机构(MA-L,MA-M,MA-S)负责。
MA-L管理全球范围内的大型组织,MA-M管理国家或地区范围内的中型组织,MA-S管理小型企业和个人用户。
4. 地址格式:MAC地址一般以十六进制表示,每两个字符代表8个二进制位。
例如,00:1C:C0:EA:34:48是一个常见的MAC地址。
有时也可以使用破折号或没有分隔符的形式表示。
5. 地址分配:通常情况下,设备制造商在生产过程中为每个设备分配一个唯一的MAC地址。
在一些情况下,设备可以通过软件修改或覆盖MAC地址。
此外,路由器和交换机等网络设备也可以配置多个虚拟接口,并为每个接口分配一个独特的MAC地址。
6. MAC地址冲突:尽管MAC地址的唯一性是通过分配和管理机构来维护的,但在某些情况下可能会发生MAC地址冲突。
例如,两个设备具有相同的MAC地址,这可能导致网络通信问题。
解决冲突的常见方法是更换其中一个设备的MAC地址。
7. MAC地址的用途:MAC地址用于在以太网或WiFi等网络中识别和寻址设备。
MAC地址的介绍(单播、⼴播、组播、数据收发)MAC地址组成⽹络设备的MAC地址是全球唯⼀的。
MAC地址长度为48⽐特,通常⽤⼗六进制表⽰。
MAC地址包含两部分:前24⽐特是组织唯⼀标识符(OUI,OrganizationallyUniqueIdentifier),由IEEE统⼀分配给设备制造商。
例如,华为的⽹络产品的MAC地址前24⽐特是0x00e0fc。
后24位序列号是⼚商分配给每个产品的唯⼀数值,由各个⼚商⾃⾏分配(这⾥所说的产品可以是⽹卡或者其他需要MAC地址的设备)。
MAC地址有单播、⼴播、组播之分单播局域⽹上的帧可以通过三种⽅式发送。
第⼀种是单播,指从单⼀的源端发送到单⼀的⽬的端。
每个主机接⼝由⼀个MAC地址唯⼀标识,MAC地址的OUI中,第⼀字节第8个⽐特表⽰地址类型。
对于主机MAC地址,这个⽐特固定为0,表⽰⽬的MAC地址为此MAC地址的帧都是发送到某个唯⼀的⽬的端。
在冲突域中,所有主机都能收到源主机发送的单播帧,但是其他主机发现⽬的地址与本地MAC地址不⼀致后会丢弃收到的帧,只有真正的⽬的主机才会接收并处理收到的帧。
⼴播第⼆种发送⽅式是⼴播,表⽰帧从单⼀的源发送到共享以太⽹上的所有主机。
⼴播帧的⽬的MAC地址为⼗六进制的FFFFFFFFFFFF,所有收到该⼴播帧的主机都要接收并处理这个帧。
⼴播⽅式会产⽣⼤量流量,导致带宽利⽤率降低,进⽽影响整个⽹络的性能。
当需要⽹络中的所有主机都能接收到相同的信息并进⾏处理的情况下,通常会使⽤⼴播⽅式。
组播第三种发送⽅式为组播,组播⽐⼴播更加⾼效。
组播转发可以理解为选择性的⼴播,主机侦听特定组播地址,接收并处理⽬的MAC地址为该组播MAC地址的帧。
组播MAC地址和单播MAC地址是通过第⼀字节中的第8个⽐特区分的。
组播MAC地址的第8个⽐特为1,⽽单播MAC地址的第8个⽐特为0。
当需要⽹络上的⼀组主机(⽽不是全部主机)接收相同信息,并且其他主机不受影响的情况下通常会使⽤组播⽅式。
wifi mac的规则WiFi(Wireless Fidelity)是一种无线网络技术,使得我们能够在没有物理连接的情况下访问互联网。
而MAC(Media Access Control)地址则是一种用于标识网络设备的唯一标识符。
本文将探讨WiFi MAC地址的规则和应用。
无论是在家庭网络还是公共场所,WiFi MAC地址都是用于识别和定位设备的重要依据。
它由一串十六进制数字和字母组成,通常以冒号分隔。
每个设备都有自己独特的MAC地址,这使得网络管理员能够准确识别和管理连接到网络的设备。
WiFi MAC地址的规则要求设备的制造商必须遵循一定的约定。
首先,MAC地址必须是全球唯一的,以避免冲突和混淆。
其次,MAC地址由三个部分组成:前六位代表设备的制造商,后面的六位是设备的序列号。
这种规则确保了每个设备的唯一性,方便网络管理和安全控制。
WiFi MAC地址在网络中的应用非常广泛。
首先,它用于设备的身份验证和访问控制。
通过限制只有特定MAC地址的设备才能连接到网络,管理员可以提高网络的安全性。
其次,MAC地址还用于网络设备的定位和跟踪。
网络管理员可以根据设备的MAC地址来确定设备在网络中的位置,以便进行故障排查或优化网络性能。
除了上述功能,WiFi MAC地址还可以用于设备的识别和过滤。
例如,在家庭网络中,家长可以通过限制特定MAC地址的设备来控制孩子的上网时间和内容访问。
此外,在企业网络中,管理员可以根据MAC地址来限制员工的网络访问权限,以确保网络的安全性和稳定性。
WiFi MAC地址是一种用于标识和管理网络设备的重要标识符。
它的规则和应用使得网络管理更加高效和安全。
通过了解和合理利用WiFi MAC地址,我们可以更好地管理和优化我们的网络连接。
让我们珍惜这一技术的便利,并在使用网络的同时保护好自己的隐私和安全。
MAC组播地址和各类IP地址不理解的:CCNA上说组织唯一标识符(OUI)是由IEEE分配给单位组织的,它包含24位(3个字节)。
各个单位组织依此被分配一个全局管理地址(24位或3个字节),这个地址是唯一的。
47位高位是Individual/Group(I/G)位,当它的值为0时,可以认为这个地址实际上是设备的MAC地址,可能出现在MAC报头的源地址部分。
当它的值为1时,就可以认为这个地址表示Ethernet中的广播地址或组播地址,或者表示TR和FDDI中的广播地址或功能。
理解的:MAC地址的第8位为0时,为单播地址,为1时,为组播地址。
一块网卡的地址一定是单播地址哪位网络达人可以帮我解释一下上面的,何为47位高位?附:组播ip与组播mac的映射IP组播和单播的目的地址不同,IP组播的目的地址是组地址——D类地址.组播IP 地址是本地管理组播地址:239.0.0.0 ~239.255.255.255D类地址是从224.0.0.0到239.255.255.255之间的IP地址其中224.0.0.0到224.0.0.255是被保留的地址224.0.0.1表示子网中所有的组播组224.0.0.2表示子网中的所有路由器224.0.0.5表示OSPF(Open Shortest Path First)路由器224.0.0.6表示OSPF指定路由器224.0.0.12表示DHCP(Dynamic Host Configuration Protocol)服务器.D类地址是动态分配和恢复的瞬态地址.每一个组播组对应于动态分配的一个D 类地址;当组播组结束组播时,相对应的D类地址将被回收,用于以后的组播.在D类地址的分配中,IETF建议遵循以下的原则:全球范围:224.0.1.0~238.255.255.255;有限范围:239.0.0.0~239.255.255.255;本地站点范围:239.253.0.0~239.253.0.16;本地机构范围:239.192.0.0~239.192.0.14.2层的MAC地址是如何与3层的IP地址进行映射的呢?通过将MAC地址的前25位强行规定位0100.5e,而后23位对应IP地址的后23位,而组播IP地址的前4位均相同如:IP地址:1110yyyy.yxxxxxxx.xxxxxxx.xxxxxxxxMAC地址:00000001.00000000.01011110.0xxxxxxx.xxxxxxx.xxxxxxxx例如:组播IP地址224.215.145.230应该映射到下列哪个组播MAC地址?( )(A)01-00-5e-57-91-e6(B)01-00-5e-d7-91-e6(C)01-00-5e-5b-91-e6(D)01-00-5e-55-91-e6用二进制来换算,将215.145.230换算成1101,0111,1001,0001,1110,0110,取最后23位放到MAC地址中的23位可以计算得出答案是A。
MAC地址厂商分配表Index MAC Address Vendor-Name100-00-0C-**-**-**Cisco Systems Inc200-00-0E-**-**-**Fujitsu300-00-75-**-**-**Nortel Networks400-00-95-**-**-**Sony Corp500-00-F0-**-**-**Samsung Electronics 600-01-02-**-**-**3Com700-01-03-**-**-**3Com800-01-30-**-**-**Extreme Networks900-01-42-**-**-**Cisco Systems Inc 1000-01-43-**-**-**Cisco Systems Inc 1100-01-4A-**-**-**Sony Corp1200-01-63-**-**-**Cisco Systems Inc 1300-01-64-**-**-**Cisco Systems Inc 1400-01-81-**-**-**Nortel Networks1500-01-96-**-**-**Cisco Systems Inc 1600-01-97-**-**-**Cisco Systems Inc 1700-01-C7-**-**-**Cisco Systems Inc 1800-01-C9-**-**-**Cisco Systems Inc 1900-01-E6-**-**-**Hewlett Packard2000-01-E7-**-**-**Hewlett Packard2100-02-16-**-**-**Cisco Systems Inc 2200-02-17-**-**-**Cisco Systems Inc 2300-02-4A-**-**-**Cisco Systems Inc 2400-02-4B-**-**-**Cisco Systems Inc 2500-02-5F-**-**-**Nortel Networks2600-02-78-**-**-**Samsung Electronics 2700-02-7D-**-**-**Cisco Systems Inc 2800-02-7E-**-**-**Cisco Systems Inc 2900-02-A5-**-**-**Hewlett Packard3000-02-B3-**-**-**Intel Corporation 3100-02-B9-**-**-**Cisco Systems Inc 3200-02-BA-**-**-**Cisco Systems Inc 3300-02-DC-**-**-**Fujitsu3400-02-EE-**-**-**Nokia3500-02-FC-**-**-**Cisco Systems Inc 3600-02-FD-**-**-**Cisco Systems Inc 3700-03-31-**-**-**Cisco Systems Inc 3800-03-32-**-**-**Cisco Systems Inc 3900-03-42-**-**-**Nortel Networks4000-03-47-**-**-**Intel Corporation 4100-03-4B-**-**-**Nortel Networks4200-03-6B-**-**-**Cisco Systems Inc 4300-03-6C-**-**-**Cisco Systems Inc 4400-03-7F-**-**-**Atheros Communications 4500-03-93-**-**-**Apple Computer4600-03-9F-**-**-**Cisco Systems Inc 4700-03-A0-**-**-**Cisco Systems Inc 4800-03-E3-**-**-**Cisco Systems Inc5000-03-FD-**-**-**Cisco Systems Inc 5100-03-FE-**-**-**Cisco Systems Inc 5200-04-0B-**-**-**3Com5300-04-1F-**-**-**Sony Corp5400-04-23-**-**-**Intel Corporation 5500-04-27-**-**-**Cisco Systems Inc 5600-04-28-**-**-**Cisco Systems Inc 5700-04-38-**-**-**Nortel Networks 5800-04-4D-**-**-**Cisco Systems Inc 5900-04-4E-**-**-**Cisco Systems Inc 6000-04-56-**-**-**Motorola Inc6100-04-5A-**-**-**Linksys6200-04-6B-**-**-**Palm Inc6300-04-6D-**-**-**Cisco Systems Inc 6400-04-6E-**-**-**Cisco Systems Inc 6500-04-80-**-**-**Foundry Networks 6600-04-96-**-**-**Extreme Networks 6700-04-9A-**-**-**Cisco Systems Inc 6800-04-9B-**-**-**Cisco Systems Inc 6900-04-BD-**-**-**Motorola Inc7000-04-C0-**-**-**Cisco Systems Inc 7100-04-C1-**-**-**Cisco Systems Inc 7200-04-DC-**-**-**Nortel Networks 7300-04-DD-**-**-**Cisco Systems Inc 7400-04-DE-**-**-**Cisco Systems Inc 7500-04-E2-**-**-**SMC Networks7600-04-EA-**-**-**Hewlett Packard 7700-05-00-**-**-**Cisco Systems Inc 7800-05-01-**-**-**Cisco Systems Inc 7900-05-02-**-**-**Apple Computer 8000-05-1A-**-**-**3Com8100-05-31-**-**-**Cisco Systems Inc 8200-05-32-**-**-**Cisco Systems Inc 8300-05-5D-**-**-**D-Link Corporation 8400-05-5E-**-**-**Cisco Systems Inc 8500-05-5F-**-**-**Cisco Systems Inc 8600-05-73-**-**-**Cisco Systems Inc 8700-05-74-**-**-**Cisco Systems Inc 8800-05-85-**-**-**Juniper Networks 8900-05-9A-**-**-**Cisco Systems Inc 9000-05-9B-**-**-**Cisco Systems Inc 9100-05-B5-**-**-**Broadcom Corp 9200-05-DC-**-**-**Cisco Systems Inc 9300-05-DD-**-**-**Cisco Systems Inc 9400-06-25-**-**-**Linksys9500-06-28-**-**-**Cisco Systems Inc 9600-06-2A-**-**-**Cisco Systems Inc 9700-06-52-**-**-**Cisco Systems Inc 9800-06-53-**-**-**Cisco Systems Inc 9900-06-5B-**-**-**Dell Inc10300-06-D6-**-**-**Cisco Systems Inc 10400-06-D7-**-**-**Cisco Systems Inc 10500-07-0D-**-**-**Cisco Systems Inc 10600-07-0E-**-**-**Cisco Systems Inc 10700-07-4D-**-**-**Zebra Technologies 10800-07-4F-**-**-**Cisco Systems Inc 10900-07-50-**-**-**Cisco Systems Inc 11000-07-72-**-**-**Alcatel-Lucent 11100-07-84-**-**-**Cisco Systems Inc 11200-07-85-**-**-**Cisco Systems Inc 11300-07-B3-**-**-**Cisco Systems Inc 11400-07-B4-**-**-**Cisco Systems Inc 11500-07-E0-**-**-**Palm Inc11600-07-E9-**-**-**Intel Corporation 11700-07-EB-**-**-**Cisco Systems Inc 11800-07-EC-**-**-**Cisco Systems Inc 11900-08-02-**-**-**Hewlett Packard 12000-08-0E-**-**-**Motorola Inc12100-08-20-**-**-**Cisco Systems Inc 12200-08-21-**-**-**Cisco Systems Inc 12300-08-74-**-**-**Dell Inc12400-08-7C-**-**-**Cisco Systems Inc 12500-08-7D-**-**-**Cisco Systems Inc 12600-08-83-**-**-**Hewlett Packard 12700-08-9A-**-**-**Alcatel-Lucent 12800-08-A3-**-**-**Cisco Systems Inc 12900-08-A4-**-**-**Cisco Systems Inc 13000-08-C2-**-**-**Cisco Systems Inc 13100-08-C7-**-**-**Hewlett Packard 13200-08-E2-**-**-**Cisco Systems Inc 13300-08-E3-**-**-**Cisco Systems Inc 13400-09-11-**-**-**Cisco Systems Inc 13500-09-12-**-**-**Cisco Systems Inc 13600-09-18-**-**-**Samsung Electronics 13700-09-43-**-**-**Cisco Systems Inc 13800-09-44-**-**-**Cisco Systems Inc 13900-09-7B-**-**-**Cisco Systems Inc 14000-09-7C-**-**-**Cisco Systems Inc 14100-09-97-**-**-**Nortel Networks 14200-09-B6-**-**-**Cisco Systems Inc 14300-09-B7-**-**-**Cisco Systems Inc 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52300-19-79-**-**-**Nokia52400-19-8F-**-**-**Alcatel-Lucent 52500-19-92-**-**-**BlueSocket Inc 52600-19-99-**-**-**Fujitsu52700-19-A6-**-**-**Motorola Inc52800-19-A9-**-**-**Cisco Systems Inc 52900-19-AA-**-**-**Cisco Systems Inc 53000-19-B7-**-**-**Nokia53100-19-B9-**-**-**Dell Inc53200-19-BB-**-**-**Hewlett Packard 53300-19-C0-**-**-**Motorola Inc53400-19-C5-**-**-**Sony Corp53500-19-CB-**-**-**ZyXEL Communications 53600-19-D1-**-**-**Intel Corporation 53700-19-D2-**-**-**Intel Corporation 53800-19-E1-**-**-**Nortel Networks 53900-19-E2-**-**-**Juniper Networks 54000-19-E3-**-**-**Apple Computer 54100-19-E7-**-**-**Cisco Systems Inc 54200-19-E8-**-**-**Cisco Systems Inc 54300-1A-16-**-**-**Nokia54400-1A-1B-**-**-**Motorola Inc54500-1A-1E-**-**-**Aruba Networks 54600-1A-2F-**-**-**Cisco Systems Inc 54700-1A-30-**-**-**Cisco Systems Inc 54800-1A-4B-**-**-**Hewlett Packard 54900-1A-66-**-**-**Motorola Inc55000-1A-6C-**-**-**Cisco Systems Inc 55100-1A-6D-**-**-**Cisco Systems Inc 55200-1A-70-**-**-**Linksys55300-1A-75-**-**-**Sony Corp55400-1A-77-**-**-**Motorola Inc55500-1A-80-**-**-**Sony Corp55600-1A-89-**-**-**Nokia55700-1A-8A-**-**-**Samsung Electronics 55800-1A-8F-**-**-**Nortel Networks56200-1A-AD-**-**-**Motorola Inc56300-1A-C1-**-**-**3Com56400-1A-DB-**-**-**Motorola Inc56500-1A-DC-**-**-**Nokia56600-1A-DE-**-**-**Motorola Inc56700-1A-E2-**-**-**Cisco Systems Inc 56800-1A-E3-**-**-**Cisco Systems Inc 56900-1A-F0-**-**-**Alcatel-Lucent 57000-1B-0C-**-**-**Cisco Systems Inc 57100-1B-0D-**-**-**Cisco Systems Inc 57200-1B-11-**-**-**D-Link Corporation 57300-1B-21-**-**-**Intel Corporation 57400-1B-25-**-**-**Nortel Networks 57500-1B-2A-**-**-**Cisco Systems Inc 57600-1B-2B-**-**-**Cisco Systems Inc 57700-1B-2F-**-**-**Netgear57800-1B-33-**-**-**Nokia57900-1B-52-**-**-**Motorola Inc58000-1B-53-**-**-**Cisco Systems Inc 58100-1B-54-**-**-**Cisco Systems Inc 58200-1B-59-**-**-**Sony Corp58300-1B-63-**-**-**Apple Computer 58400-1B-77-**-**-**Intel Corporation 58500-1B-78-**-**-**Hewlett Packard 58600-1B-8F-**-**-**Cisco Systems Inc 58700-1B-90-**-**-**Cisco Systems Inc 58800-1B-98-**-**-**Samsung Electronics 58900-1B-AF-**-**-**Nokia59000-1B-BA-**-**-**Nortel Networks 59100-1B-C0-**-**-**Juniper Networks 59200-1B-D4-**-**-**Cisco Systems Inc 59300-1B-D5-**-**-**Cisco Systems Inc 59400-1B-D7-**-**-**Cisco Systems Inc 59500-1B-DD-**-**-**Motorola Inc59600-1B-E9-**-**-**Broadcom Corp 59700-1B-ED-**-**-**Foundry Networks 59800-1B-EE-**-**-**Nokia59900-1C-0E-**-**-**Cisco Systems Inc 60000-1C-0F-**-**-**Cisco Systems Inc 60100-1C-10-**-**-**Linksys60200-1C-11-**-**-**Motorola Inc60300-1C-12-**-**-**Motorola Inc60400-1C-17-**-**-**Nortel Networks 60500-1C-23-**-**-**Dell Inc60600-1C-35-**-**-**Nokia60700-1C-43-**-**-**Samsung Electronics 60800-1C-57-**-**-**Cisco Systems Inc 60900-1C-58-**-**-**Cisco Systems Inc61100-1C-9A-**-**-**Nokia61200-1C-9C-**-**-**Nortel Networks 61300-1C-A4-**-**-**Sony Corp61400-1C-B0-**-**-**Cisco Systems Inc 61500-1C-B1-**-**-**Cisco Systems Inc 61600-1C-B3-**-**-**Apple Computer 61700-1C-BF-**-**-**Intel Corporation 61800-1C-C0-**-**-**Intel Corporation 61900-1C-C1-**-**-**Motorola Inc62000-1C-C4-**-**-**Hewlett Packard 62100-1C-C5-**-**-**3Com62200-1C-D4-**-**-**Nokia62300-1C-D6-**-**-**Nokia62400-1C-DF-**-**-**Belkin Corp62500-1C-EB-**-**-**Nortel Networks 62600-1C-F0-**-**-**D-Link Corporation 62700-1C-F6-**-**-**Cisco Systems Inc 62800-1C-F9-**-**-**Cisco Systems Inc 62900-1C-FB-**-**-**Motorola Inc63000-1D-09-**-**-**Dell Inc63100-1D-0D-**-**-**Sony Corp63200-1D-25-**-**-**Samsung Electronics 63300-1D-28-**-**-**Sony Corp63400-1D-2E-**-**-**Ruckus Wireless 63500-1D-3B-**-**-**Nokia63600-1D-42-**-**-**Nortel Networks 63700-1D-45-**-**-**Cisco Systems Inc 63800-1D-46-**-**-**Cisco Systems Inc 63900-1D-4C-**-**-**Alcatel-Lucent 64000-1D-4F-**-**-**Apple Computer 64100-1D-6B-**-**-**Motorola Inc64200-1D-6E-**-**-**Nokia64300-1D-70-**-**-**Cisco Systems Inc 64400-1D-71-**-**-**Cisco Systems Inc 64500-1D-73-**-**-**Buffalo Inc64600-1D-7E-**-**-**Linksys64700-1D-98-**-**-**Nokia64800-1D-A1-**-**-**Cisco Systems Inc 64900-1D-A2-**-**-**Cisco Systems Inc 65000-1D-AF-**-**-**Nortel Networks 65100-1D-B5-**-**-**Juniper Networks 65200-1D-BA-**-**-**Sony Corp65300-1D-BE-**-**-**Motorola Inc65400-1D-E0-**-**-**Intel Corporation 65500-1D-E1-**-**-**Intel Corporation 65600-1D-E5-**-**-**Cisco Systems Inc 65700-1D-E6-**-**-**Cisco Systems Inc 65800-1D-E9-**-**-**Nokia65900-1D-F6-**-**-**Samsung Electronics 66000-1D-FD-**-**-**Nokia66200-1E-0B-**-**-**Hewlett Packard66300-1E-10-**-**-**Huawei Technologies Co 66400-1E-13-**-**-**Cisco Systems Inc 66500-1E-14-**-**-**Cisco Systems Inc 66600-1E-1F-**-**-**Nortel Networks66700-1E-2A-**-**-**Netgear66800-1E-3A-**-**-**Nokia66900-1E-3B-**-**-**Nokia67000-1E-45-**-**-**Sony Corp67100-1E-46-**-**-**Motorola Inc67200-1E-49-**-**-**Cisco Systems Inc 67300-1E-4A-**-**-**Cisco Systems Inc 67400-1E-4F-**-**-**Dell Inc67500-1E-52-**-**-**Apple Computer67600-1E-58-**-**-**D-Link Corporation 67700-1E-5A-**-**-**Motorola Inc67800-1E-64-**-**-**Intel Corporation 67900-1E-65-**-**-**Intel Corporation 68000-1E-67-**-**-**Intel Corporation 68100-1E-6B-**-**-**Cisco Systems Inc 68200-1E-79-**-**-**Cisco Systems Inc 68300-1E-7A-**-**-**Cisco Systems Inc 68400-1E-7D-**-**-**Samsung Electronics 68500-1E-7E-**-**-**Nortel Networks68600-1E-8D-**-**-**Motorola Inc68700-1E-A3-**-**-**Nokia68800-1E-A4-**-**-**Nokia68900-1E-A8-**-**-**Datang Corporation 69000-1E-BD-**-**-**Cisco Systems Inc 69100-1E-BE-**-**-**Cisco Systems Inc 69200-1E-C1-**-**-**3Com69300-1E-C2-**-**-**Apple Computer69400-1E-C9-**-**-**Dell Inc69500-1E-CA-**-**-**Nortel Networks69600-1E-DC-**-**-**Sony Corp69700-1E-E1-**-**-**Samsung Electronics 69800-1E-E2-**-**-**Samsung Electronics 69900-1E-E5-**-**-**Linksys70000-1E-F6-**-**-**Cisco Systems Inc 70100-1E-F7-**-**-**Cisco Systems Inc 70200-1F-00-**-**-**Nokia70300-1F-01-**-**-**Nokia70400-1F-0A-**-**-**Nortel Networks70500-1F-12-**-**-**Juniper Networks 70600-1F-26-**-**-**Cisco Systems Inc 70700-1F-27-**-**-**Cisco Systems Inc 70800-1F-29-**-**-**Hewlett Packard70900-1F-33-**-**-**Netgear71000-1F-3B-**-**-**Intel Corporation 71100-1F-3C-**-**-**Intel Corporation71300-1F-46-**-**-**Nortel Networks 71400-1F-5B-**-**-**Apple Computer 71500-1F-5C-**-**-**Nokia71600-1F-5D-**-**-**Nokia71700-1F-6C-**-**-**Cisco Systems Inc 71800-1F-6D-**-**-**Cisco Systems Inc 71900-1F-7E-**-**-**Motorola Inc72000-1F-9A-**-**-**Nortel Networks 72100-1F-9D-**-**-**Cisco Systems Inc 72200-1F-9E-**-**-**Cisco Systems Inc 72300-1F-A7-**-**-**Sony Corp72400-1F-C4-**-**-**Motorola Inc72500-1F-C9-**-**-**Cisco Systems Inc 72600-1F-CA-**-**-**Cisco Systems Inc 72700-1F-CC-**-**-**Samsung Electronics 72800-1F-CD-**-**-**Samsung Electronics 72900-1F-DA-**-**-**Nortel Networks 73000-1F-DE-**-**-**Nokia73100-1F-DF-**-**-**Nokia73200-1F-E4-**-**-**Sony Corp73300-1F-F3-**-**-**Apple Computer 73400-20-32-**-**-**Alcatel-Lucent 73500-20-40-**-**-**Motorola Inc73600-20-60-**-**-**Alcatel-Lucent 73700-20-75-**-**-**Motorola Inc73800-20-7B-**-**-**Intel Corporation 73900-20-A6-**-**-**Proxim Inc74000-20-AF-**-**-**3Com74100-20-D8-**-**-**Nortel Networks 74200-20-DA-**-**-**Alcatel-Lucent 74300-21-05-**-**-**Alcatel-Lucent 74400-21-08-**-**-**Nokia74500-21-09-**-**-**Nokia74600-21-19-**-**-**Samsung Electronics 74700-21-1B-**-**-**Cisco Systems Inc 74800-21-1C-**-**-**Cisco Systems Inc 74900-21-1E-**-**-**Motorola Inc75000-21-29-**-**-**Linksys75100-21-35-**-**-**Alcatel-Lucent 75200-21-36-**-**-**Motorola Inc75300-21-43-**-**-**Motorola Inc75400-21-4C-**-**-**Samsung Electronics 75500-21-55-**-**-**Cisco Systems Inc 75600-21-56-**-**-**Cisco Systems Inc 75700-21-59-**-**-**Juniper Networks 75800-21-5A-**-**-**Hewlett Packard 75900-21-5C-**-**-**Intel Corporation 76000-21-5D-**-**-**Intel Corporation 76100-21-62-**-**-**Nortel Networks 76200-21-6A-**-**-**Intel Corporation76400-21-70-**-**-**Dell Inc76500-21-80-**-**-**Motorola Inc76600-21-91-**-**-**D-Link Corporation 76700-21-9B-**-**-**Dell Inc76800-21-9E-**-**-**Sony Corp76900-21-A0-**-**-**Cisco Systems Inc 77000-21-A1-**-**-**Cisco Systems Inc 77100-21-AA-**-**-**Nokia77200-21-AB-**-**-**Nokia77300-21-AE-**-**-**Alcatel-Lucent77400-21-BA-**-**-**Texas Instruments 77500-21-BE-**-**-**Cisco Systems Inc 77600-21-D1-**-**-**Samsung Electronics 77700-21-D2-**-**-**Samsung Electronics 77800-21-D7-**-**-**Cisco Systems Inc 77900-21-D8-**-**-**Cisco Systems Inc 78000-21-E1-**-**-**Nortel Networks78100-21-E9-**-**-**Apple Computer78200-21-FC-**-**-**Nokia78300-21-FE-**-**-**Nokia78400-22-0C-**-**-**Cisco Systems Inc 78500-22-0D-**-**-**Cisco Systems Inc 78600-22-10-**-**-**Motorola Inc78700-22-19-**-**-**Dell Inc78800-22-2D-**-**-**SMC Networks78900-22-3A-**-**-**Cisco Systems Inc 79000-22-3F-**-**-**Netgear79100-22-41-**-**-**Apple Computer79200-22-55-**-**-**Cisco Systems Inc 79300-22-56-**-**-**Cisco Systems Inc 79400-22-57-**-**-**3Com79500-22-64-**-**-**Hewlett Packard79600-22-65-**-**-**Nokia79700-22-66-**-**-**Nokia79800-22-67-**-**-**Nortel Networks79900-22-6B-**-**-**Linksys80000-22-75-**-**-**Belkin Corp80100-22-7F-**-**-**Ruckus Wireless80200-22-83-**-**-**Juniper Networks 80300-22-90-**-**-**Cisco Systems Inc 80400-22-91-**-**-**Cisco Systems Inc 80500-22-98-**-**-**Sony Corp80600-22-A1-**-**-**Huawei Technologies Co 80700-22-A5-**-**-**Texas Instruments 80800-22-A6-**-**-**Sony Corp80900-22-B0-**-**-**D-Link Corporation 81000-22-B4-**-**-**Motorola Inc81100-22-BD-**-**-**Cisco Systems Inc 81200-22-BE-**-**-**Cisco Systems Inc 81300-22-CE-**-**-**Cisco Systems Inc。
物理地址是唯一的吗MAC(Media Access Control或者Medium Access Control)地址,意译为媒体访问控制,或称为物理地址、硬件地址,用来定义网络设备的位置。
今天店铺给大家介绍一下物理地址是否唯一的相关知识。
供大家参考!物理地址是唯一的吗?参考如下原则上MAC地址是全球唯一的,但是实际上网卡的地址可以手工修改,所以只能是原则上了。
为了便于管理,IP地址远远小于MAC地址的数目。
IP地址由用点分隔开的4个8八位组构成,如192.168.0.1就是一个IP地址,这种写法叫点分十进制格式。
MAC地址,长度为48位(6个字节),通常表示为12个16进制数,每2个16进制数之间用冒号隔开,如:08:00:20:0A:8C:6D就是一个MAC地址。
你相比一下就晓得数目的差距了吧。
举例来说,在局域网内,管理员要查询定位你的电脑,并不需要查询超级长的MAC只需要IP就能找你设备。
而且就方案来说,使用IP地址的话,很多方案是有共通性的,MAC地址就完全复制不能了。
个人感觉,Ip地址就是一种简化,通过分出私有地址和公有地址对网络设备进行定位标记,而用MAC就太长。
比如,你能记得IP地址,还能记得MAC地址啊?路由器的MAC地址是全球唯一的。
MAC(Media Access Control或者Medium Access Control)地址,意译为媒体访问控制,或称为物理地址、硬件地址,用来定义网络设备的位置。
mac地址用来表示互联网上每一个站点的标识符,采用十六进制数表示,共六个字节(48位)。
其中,前三个字节是由IEEE 的注册管理机构RA负责给不同厂家分配的代码(高位24位),也称为“编制上唯一的标识符”(Organizationally Unique Identifier),后三个字节(低位24位)由各厂家自行指派给生产的适配器接口,称为扩展标识符(唯一性)。
一个地址块可以生成224个不同的地址。
全球MAC地址分配(标准分配,不考虑自己修改的那些)0:0:1 SuperLAN-2U0:0:10 Hughes LAN Systems (formerly Sytek)0:0:11 Tektronix0:0:15 Datapoint Corporation0:0:18 Webster Computer Corporation Appletalk/Ethernet Gateway0:0:1a AMD (?)0:0:1b Novell (now Eagle Technology)0:0:1c JDR Microdevices generic, NE2000 drivers0:0:1d Cabletron0:0:1f Cryptall Communications Corp.0:0:2 BBN (was internal usage only, no longer used)0:0:20 DIAB (Data Intdustrier AB)0:0:21 SC&C (PAM Soft&Hardware also reported)0:0:22 Visual Technology0:0:23 ABB Automation AB, Dept. Q0:0:24 Olicom0:0:29 IMC0:0:2a TRW0:0:2c NRC - Network Resources Corporation - MultiGate Hub1+, Hub2, etc 0:0:32 GPT Limited (reassigned from GEC Computers Ltd)0:0:37 Oxford Metrics Ltd0:0:3b Hyundai/Axil Sun Sparc Station 2 clone0:0:3c Auspex0:0:3d AT&T0:0:3f Syntrex Inc0:0:44 Castelle0:0:46 ISC-Bunker Ramo, An Olivetti Company0:0:48 Epson0:0:49 Apricot Ltd.0:0:4b APT -ICL also reported0:0:4c NEC Corporation0:0:4f Logicraft 386-Ware P.C. Emulator0:0:51 Hob Electronic Gmbh & Co. KG0:0:52 Optical Data Systems0:0:55 AT&T0:0:58 Racore Computer Products Inc0:0:5a SK (Schneider & Koch in Europe and Syskonnect outside of Europe) 0:0:5a Xerox 806 (unregistered)0:0:5b Eltec0:0:5d RCE0:0:5e U.S. Department of Defense (IANA)0:0:5f Sumitomo0:0:61 Gateway Communications0:0:62 Honeywell0:0:63 Hewlett-Packard LanProbe0:0:64 Yokogawa Digital Computer Corp0:0:65 Network General0:0:66 Talaris0:0:68 Rosemount Controls0:0:69 Concord Communications, Inc (although someone said Silicon Graphics) 0:0:6b MIPS0:0:6d Case0:0:6e Artisoft, Inc.0:0:6f Madge Networks Ltd0:0:6f Madge Networks Ltd. Token-ring adapters0:0:73 DuPont0:0:75 Bell Northern Research (BNR)0:0:77 Interphase [Used in other systems, e.g. MIPS, Motorola]0:0:78 Labtam Australia0:0:79 Networth Incorporated [bought by Compaq, used in Netelligent series]0:0:7a Ardent0:0:7b Research Machines0:0:7d Cray Research Superservers,Inc [Also Harris (3M) (old)]0:0:7e NetFRAME multiprocessor network servers0:0:7f Linotype-Hell AG Linotronic typesetters0:0:80 Cray Communications (formerly Dowty Network Services) [Also shows as"Harris (3M) (new)" and/or "Imagen(?)" elsewhere]0:0:81 Synoptics0:0:83 Tadpole Technology [had Optical Data Systems which is wrong accordingto both]0:0:84 Aquila (?), ADI Systems Inc.(?)0:0:86 Gateway Communications Inc. (also Megahertz Corporation?)0:0:87 Hitachi0:0:89 Cayman Systems Gatorbox0:0:8a Datahouse Information Systems0:0:8e Solbourne(?), Jupiter(?) (I've had confirming mail on Solbourne)0:0:9 powerpipes?0:0:92 Unisys, Cogent (both reported)0:0:93 Proteon0:0:94 Asante MAC0:0:95 Sony/Tektronix0:0:97 Epoch0:0:98 Cross Com0:0:99 Memorex Telex Corporations0:0:9f Ameristar Technology0:0:a0 Sanyo Electronics0:0:a2 Wellfleet0:0:a3 Network Application Technology (NAT)0:0:a4 Acorn0:0:a5 Compatible Systems Corporation0:0:a6 Network General (internal assignment, not for products)0:0:a7 Network Computing Devices (NCD) X-terminals0:0:a8 Stratus Computer, Inc.0:0:a9 Network Systems0:0:aa Xerox Xerox machines0:0:ac Conware Netzpartner [had Apollo, claimed incorrect] 0:0:ae Dassault Automatismes et Telecommunications0:0:af Nuclear Data Acquisition Interface Modules (AIM) 0:0:b0 RND (RAD Network Devices)0:0:b1 Alpha Microsystems Inc.0:0:b3 CIMLinc0:0:b4 Edimax0:0:b5 Datability Terminal Servers0:0:b6 Micro-matic Research0:0:b7 Dove Fastnet0:0:bb TRI-DATA Systems Inc. Netway products, 3274 emulators 0:0:bc Allen-Bradley0:0:c Cisco0:0:c0 Western Digital now SMC (Std. Microsystems Corp.)0:0:c1 Olicom A/S0:0:c5 Farallon Computing Inc0:0:c6 HP Intelligent Networks Operation (formerly Eon Systems)0:0:c8 Altos0:0:c9 Emulex Terminal Servers, Print Servers0:0:ca LANcity Cable Modems (now owned by BayNetworks)0:0:cc Densan Co., Ltd.0:0:cd Industrial Research Limited0:0:d0 Develcon Electronics, Ltd.0:0:d1 Adaptec, Inc. "Nodem" product0:0:d2 SBE Inc0:0:d3 Wang Labs0:0:d4 PureData0:0:d7 Dartmouth College (NED Router)0:0:d8 old Novell NE1000's (before about 1987?) (also 3Com)0:0:dd Gould0:0:de Unigraph0:0:e Fujitsu0:0:e1 Hitachi (laptop built-in)0:0:e2 Acer Counterpoint0:0:e3 Integrated Micro Products Ltd0:0:e4 mips?0:0:e6 Aptor Produits De Comm Indust0:0:e8 Accton Technology Corporation0:0:e9 ISICAD, Inc.0:0:ed April0:0:ee Network Designers Limited [also KNX Ltd, a former division]0:0:ef Alantec0:0:f NeXT0:0:f0 Samsung0:0:f2 Spider Communications (Montreal, not Spider Systems)0:0:f3 Gandalf Data Ltd. - Canada0:0:f4 Allied Telesis, Inc.0:0:f6 A.M.C. (Applied Microsystems Corp.)0:0:f8 DEC0:0:fb Rechner zur Kommunikation0:0:fd High Level Hardware (Orion, UK)0:0:ff Camtec Electronics (UK) Ltd.0:10:11 Cisco Systems Cisco 75xx0:10:1f Cisco0:10:2f Cisco Cisco 50000:10:4b 3Com 3C905-TX PCI0:10:79 Cisco 5500 Router0:10:7a Ambicom (was Tandy?)0:10:f6 Cisco0:17:0 Kabel0:1:2 BBN (Bolt Beranek and Newman, Inc.) internal usage (not registered)0:1:43 IEEE 8020:1:63 NDC (National Datacomm Corporation)0:1:68 W&G (Wandel & Goltermann) [incorrect according to W&G] 0:1:c8 Thomas Conrad Corp.0:1:fa Compaq (PageMarq printers)0:20:0 Lexmark (Print Server)0:20:11 Canopus Co Ltd0:20:17 Orbotech0:20:18 Realtek0:20:1a Nbase0:20:25 Control Technology Inc (Industrial Controls and Network Interfaces) 0:20:28 Bloomberg0:20:2b ATML (Advanced Telecommunications Modules, Ltd.)0:20:35 IBM (International Business Machines) mainframes, Etherjetprinters0:20:36 BMC Software0:20:42 Datametrics Corp0:20:45 SolCom Systems Limited0:20:48 Fore Systems Inc0:20:4b Autocomputer Co Ltd0:20:4c Mitron Computer Pte Ltd0:20:56 Neoproducts0:20:61 Dynatech Communications Inc0:20:63 Wipro Infotech Ltd0:20:66 General Magic Inc0:20:67 Node Runner Inc0:20:6b Minolta Co., Ltd Network printers0:20:78 Runtop Inc0:20:8 Cable & Computer Technology0:20:85 3COM SuperStack II UPS management module0:20:8a Sonix Communications Ltd0:20:8b Focus Enhancements0:20:8c Galaxy Networks Inc0:20:94 Cubix Corporation0:20:a5 Newer Technology0:20:a6 Proxim Inc0:20:af 3COM Corporation0:20:b6 Agile Networks Inc0:20:b9 Metricom, Inc.0:20:c Adastra Systems Corp0:20:c5 Eagle NE20000:20:c6 NECTEC0:20:d0 Versalynx Corp. "The One Port" terminal server0:20:d2 RAD Data Communications Ltd0:20:d3 OST (Ouet Standard Telematique)0:20:d8 NetWave0:20:da Xylan0:20:dc Densitron Taiwan Ltd0:20:e0 PreMax PE-200 (PCMCIA NE2000-clone card, sold by InfoExpress) 0:20:e5 Apex Data0:20:ee Gtech Corporation0:20:f6 Net Tek & Karlnet Inc0:20:f8 Carrera Computers Inc0:2:16 ESI (Extended Systems, Inc) print servers0:2:4 Novell NE32000:2:5 Hamilton (Sparc Clones)0:2:88 Global Village (PCcard in Mac portable)0:3:c6 Morning Star Technologies Inc0:40:1 Zero One Technology Co Ltd (ZyXEL?)0:40:10 Sonic Mac Ethernet interfaces0:40:11 Facilities Andover Environmental Controllers0:40:13 NTT Data Communication Systems Corp0:40:14 Comsoft Gmbh0:40:15 Ascom0:40:17 XCd XJet - HP printer server card0:40:1c AST Pentium/90 PC (emulating AMD EISA card)0:40:1f Colorgraph Ltd0:40:20 Pilkington Communication0:40:23 Logic Corporation0:40:25 Molecular Dynamics0:40:26 Melco Inc0:40:27 SMC Massachusetts [Had:Sigma (?), maybe the "S"?] 0:40:28 Netcomm0:40:2a Canoga-Perkins0:40:2b TriGem0:40:2f Xlnt Designs Inc (XDI)0:40:30 GK Computer0:40:32 Digital Communications0:40:33 Addtron Technology Co., Ltd.0:40:36 TribeStar0:40:39 Optec Daiichi Denko Co Ltd0:40:3c Forks, Inc.0:40:41 Fujikura Ltd.0:40:43 Nokia Data Communications0:40:48 SMD Informatica S.A.0:40:4c Hypertec Pty Ltd.0:40:4d Telecomm Techniques0:40:4f Space & Naval Warfare Systems0:40:5 TRENDware International Inc.; Linksys; Simple Net; all three reported0:40:50 Ironics, Incorporated0:40:52 Star Technologies Inc0:40:54 Thinking Machines Corporation0:40:57 Lockheed-Sanders0:40:59 Yoshida Kogyo K.K.0:40:5b Funasset Limited0:40:5d Star-Tek Inc0:40:66 Hitachi Cable, Ltd.0:40:67 Omnibyte Corporation0:40:68 Extended Systems0:40:69 Lemcom Systems Inc0:40:6a Kentek Information Systems Inc0:40:6e Corollary, Inc.0:40:6f Sync Research Inc0:40:72 Applied Innovation0:40:74 Cable and Wireless0:40:76 AMP Incorporated0:40:78 Wearnes Automation Pte Ltd0:40:7f Agema Infrared Systems AB0:40:82 Laboratory Equipment Corp0:40:85 SAAB Instruments AB0:40:86 Michels & Kleberhoff Computer0:40:87 Ubitrex Corporation0:40:88 Mobuis NuBus (Mac) combination video/EtherTalk0:40:8a TPS Teleprocessing Sys. Gmbh0:40:8c Axis Communications AB0:40:8e CXR/Digilog0:40:8f WM-Data Minfo AB0:40:9 Tachibana Tectron Co Ltd0:40:90 Ansel Communications PC NE2000 compatible twisted-pair ethernet cards0:40:91 Procomp Industria Eletronica0:40:92 ASP Computer Products, Inc.0:40:94 Shographics Inc0:40:95 Eagle Technologies [UMC also reported]0:40:96 Telesystems SLW Inc0:40:9a Network Express Inc0:40:9c Transware0:40:9d DigiBoard Ethernet-ISDN bridges0:40:9e Concurrent Technologies Ltd.0:40:9f Lancast/Casat Technology Inc0:40:a4 Rose Electronics0:40:a6 Cray Research Inc.0:40:aa Valmet Automation Inc0:40:ad SMA Regelsysteme Gmbh0:40:ae Delta Controls, Inc.0:40:af Digital Products, Inc. (DPI).0:40:b Crescendo (now owned by Cisco)0:40:b4 3COM K.K.0:40:b5 Video Technology Computers Ltd0:40:b6 Computerm Corporation0:40:b9 MACQ Electronique SA0:40:bd Starlight Networks Inc0:40:c General Micro Systems, Inc.0:40:c1 Bizerba-Werke Wilheim Kraut0:40:c2 Applied Computing Devices0:40:c3 Fischer and Porter Co.0:40:c5 Micom Communications Corp.0:40:c6 Fibernet Research, Inc.0:40:c7 Danpex Corporation0:40:c8 Milan Technology Corp.0:40:cc Silcom Manufacturing Technology Inc0:40:cf Strawberry Tree Inc0:40:d LANNET Data Communications0:40:d2 Pagine Corporation0:40:d4 Gage Talker Corp.0:40:d7 Studio Gen Inc0:40:d8 Ocean Office Automation Ltd0:40:dc Tritec Electronic Gmbh0:40:df Digalog Systems, Inc.0:40:e1 Marner International Inc0:40:e2 Mesa Ridge Technologies Inc0:40:e3 Quin Systems Ltd0:40:e5 Sybus Corporation0:40:e7 Arnos Instruments & Computer0:40:e9 Accord Systems, Inc.0:40:ea PlainTree Systems Inc0:40:ed Network Controls International Inc0:40:f0 Micro Systems Inc0:40:f1 Chuo Electronics Co., Ltd.0:40:f4 Cameo Communications, Inc.0:40:f5 OEM Engines0:40:f6 Katron Computers Inc0:40:f9 Combinet0:40:fa Microboards Inc0:40:fb Cascade Communications Corp.0:40:fd LXE0:40:ff Telebit Corporation Personal NetBlazer0:4:0 Lexmark (Print Server)0:4:ac IBM PCMCIA Ethernet adapter.0:4f:49 Realtek0:4f:4b Pine Technology Ltd.0:50:4d Repotec Group0:50:4e UMC UM9008 NE2000-compatible ISA Card for PC 0:5:2 Apple (PCI bus Macs)0:5:9a PowerComputing (Mac clone)0:5:a8 PowerComputing Mac clones0:60:25 Active Imaging Inc.0:60:2f Cisco0:60:3e Cisco 100Mbps interface0:60:47 Cisco0:60:52 Realtek (RTL 8029 == PCI NE2000)0:60:5c Cisco0:60:67 Acer Lan0:60:70 Cisco routers (2524 and 4500)0:60:8 3Com Found in a 3Com PCI form factor 3C905 TX board0:60:83 Cisco Systems, Inc. 3620/3640 routers0:60:8c 3Com (1990 onwards)0:60:9 Cisco Catalyst 5000 Ethernet switch0:60:94 AMD PCNET PCI0:60:97 3Com0:60:b0 Hewlett-Packard0:6:29 IBM RISC6000 system0:6:7c Cisco0:6:c1 Cisco0:6:d Hewlett-Packard JetDirect token-ring interfaces0:7:1 Racal-Datacom0:7:d Cisco 2511 Token Ring0:80:0 Multitech Systems Inc0:80:1 Periphonics Corporation0:80:10 Commodore0:80:12 IMS Corp. IMS failure analysis tester0:80:13 Thomas Conrad Corp.0:80:15 Seiko Systems Inc0:80:16 Wandel & Goltermann0:80:17 PFU0:80:19 Dayna Communications "Etherprint" product0:80:1a Bell Atlantic0:80:1b Kodiak Technology0:80:1c Cisco0:80:21 Newbridge Networks Corporation0:80:23 Integrated Business Networks0:80:24 Kalpana0:80:26 Network Products Corporation0:80:29 Microdyne Corporation0:80:2a Test Systems & Simulations Inc0:80:2c The Sage Group PLC0:80:2d Xylogics, Inc. Annex terminal servers0:80:2e Plexcom, Inc.0:80:33 Formation (?)0:80:34 SMT-Goupil0:80:35 Technology Works0:80:37 Ericsson Business Comm.0:80:38 Data Research & Applications0:80:3b APT Communications, Inc.0:80:3d Surigiken Co Ltd0:80:3e Synernetics0:80:3f Hyundai Electronics0:80:4 Antlow Computers, Ltd.0:80:42 Force Computers0:80:43 Networld Inc0:80:45 Matsushita Electric Ind Co0:80:46 University of Toronto0:80:48 Compex, used by Commodore and DEC at least 0:80:49 Nissin Electric Co Ltd0:80:4c Contec Co., Ltd.0:80:4d Cyclone Microsystems, Inc.0:80:5 Cactus Computer Inc.0:80:51 ADC Fibermux0:80:52 Network Professor0:80:57 Adsoft Ltd0:80:5a Tulip Computers International BV0:80:5b Condor Systems, Inc.0:80:5c Agilis(?)0:80:5f Compaq Computer Corporation0:80:6 Compuadd Corporation0:80:60 Network Interface Corporation0:80:62 Interface Co.0:80:63 Richard Hirschmann Gmbh & Co0:80:64 Wyse0:80:67 Square D Company0:80:69 Computone Systems0:80:6a ERI (Empac Research Inc.)0:80:6b Schmid Telecommunication0:80:6c Cegelec Projects Ltd0:80:6d Century Systems Corp.0:80:6e Nippon Steel Corporation0:80:6f Onelan Ltd0:80:7 Dlog NC-Systeme0:80:71 SAI Technology0:80:72 Microplex Systems Ltd0:80:74 Fisher Controls0:80:79 Microbus Designs Ltd0:80:7b Artel Communications Corp.0:80:7c FiberCom0:80:7d Equinox Systems Inc0:80:82 PEP Modular Computers Gmbh0:80:86 Computer Generation Inc.0:80:87 Okidata0:80:8a Summit (?)0:80:8b Dacoll Limited0:80:8c Frontier Software Development0:80:8d Westcove Technology BV0:80:8e Radstone Technology0:80:9 Jupiter Systems (older MX-600 series machines)0:80:90 Microtek International Inc0:80:92 Japan Computer Industry, Inc.0:80:93 Xyron Corporation0:80:94 Sattcontrol AB0:80:96 HDS (Human Designed Systems) X terminals0:80:98 TDK Corporation0:80:9a Novus Networks Ltd0:80:9b Justsystem Corporation0:80:9d Datacraft Manufactur'g Pty Ltd0:80:9f Alcatel Business Systems0:80:a1 Microtest0:80:a3 Lantronix (see also 0800A3)0:80:a6 Republic Technology Inc0:80:a7 Measurex Corp0:80:ad CNet Technology Used by Telebit (among others) 0:80:ae Hughes Network Systems0:80:af Allumer Co., Ltd.0:80:b1 Softcom A/S0:80:b2 NET (Network Equipment Technologies)0:80:b6 Themis corporation0:80:ba Specialix (Asia) Pte Ltd0:80:c0 Penril Datability Networks0:80:c2 IEEE 802.1 Committee0:80:c6 Soho0:80:c7 Xircom, Inc.0:80:c8 D-Link (also Solectek Pocket Adapters, and LinkSys PCMCIA) 0:80:c9 Alberta Microelectronic Centre0:80:ce Broadcast Television Systems0:80:d V osswinkel FU0:80:d0 Computer Products International0:80:d3 Shiva Appletalk-Ethernet interface0:80:d4 Chase Limited0:80:d6 Apple Mac Portable(?)0:80:d7 Fantum Electronics0:80:d8 Network Peripherals0:80:da Bruel & Kjaer0:80:e0 XTP Systems Inc0:80:e3 Coral (?)0:80:e7 Lynwood Scientific Dev Ltd0:80:ea The Fiber Company0:80:f SMC (Standard Microsystem Corp.)0:80:f0 Kyushu Matsushita Electric Co0:80:f1 Opus0:80:f3 Sun Electronics Corp0:80:f4 Telemechanique Electrique0:80:f5 Quantel Ltd0:80:f7 Zenith Communications Products0:80:fb BVM Limited0:80:fe Azure Technologies Inc0:8:52 Technically Elite Concepts0:8:55 Fermilab0:8:c7 Compaq0:a0:0 Bay Networks Ethernet switch0:a0:24 3com0:a0:40 Apple (PCI Mac)0:a0:92 Intermate International [LAN printer interfaces]0:a0:c9 Intel (PRO100B cards)0:a0:cc MacSense 100Base-TX Adapter for Mac Also seen in PCs (?) 0:a0:d1 National Semiconductor [COMPAQ Docking Station]0:a0:d2 Allied Telesyn0:aa:0 Intel0:b0:d0 Computer Products International0:c0:0 Lanoptics Ltd0:c0:1 Diatek Patient Managment0:c0:11 Interactive Computing Devices0:c0:12 Netspan Corp0:c0:13 Netrix0:c0:14 Telematics Calabasas0:c0:15 New Media Corp0:c0:16 Electronic Theatre Controls0:c0:17 Fluke0:c0:18 Lanart Corp0:c0:1a Corometrics Medical Systems0:c0:1b Socket Communications0:c0:1c Interlink Communications Ltd.0:c0:1d Grand Junction Networks, Inc.0:c0:1f S.E.R.C.E.L.0:c0:2 Sercomm Corporation0:c0:20 Arco Electronic, Control Ltd.0:c0:21 Netexpress0:c0:23 Tutankhamon Electronics0:c0:24 Eden Sistemas De Computacao SA0:c0:25 Dataproducts Corporation0:c0:27 Cipher Systems, Inc.0:c0:28 Jasco Corporation0:c0:29 Kabel Rheydt AG0:c0:2a Ohkura Electric Co0:c0:2b Gerloff Gesellschaft Fur0:c0:2c Centrum Communications, Inc.0:c0:2d Fuji Photo Film Co., Ltd.0:c0:2e Netwiz0:c0:2f Okuma Corp0:c0:3 Globalnet Communications0:c0:30 Integrated Engineering B. V.0:c0:31 Design Research Systems, Inc.0:c0:32 I-Cubed Limited0:c0:33 Telebit Corporation0:c0:34 Dale Computer Corporation0:c0:35 Quintar Company0:c0:36 Raytech Electronic Corp0:c0:39 Silicon Systems0:c0:3b Multiaccess Computing Corp0:c0:3c Tower Tech S.R.L.0:c0:3d Wiesemann & Theis Gmbh0:c0:3e Fa. Gebr. Heller Gmbh0:c0:3f Stores Automated Systems Inc0:c0:4 Japan Business Computer Co.Ltd0:c0:40 ECCI0:c0:41 Digital Transmission Systems0:c0:42 Datalux Corp.0:c0:43 Stratacom0:c0:44 Emcom Corporation0:c0:45 Isolation Systems Inc0:c0:46 Kemitron Ltd0:c0:47 Unimicro Systems Inc0:c0:48 Bay Technical Associates0:c0:49 US Robotics Total Control (tm) NETServer Card0:c0:4d Mitec Ltd0:c0:4e Comtrol Corporation0:c0:4f Dell0:c0:5 Livingston Enterprises Inc Portmaster (OEMed by Cayman) 0:c0:50 Toyo Denki Seizo K.K.0:c0:51 Advanced Integration Research0:c0:55 Modular Computing Technologies0:c0:56 Somelec0:c0:57 Myco Electronics0:c0:58 Dataexpert Corp0:c0:59 Nippondenso Corp0:c0:5b Networks Northwest Inc0:c0:5c Elonex PLC0:c0:5d L&N Technologies0:c0:5e Vari-Lite Inc0:c0:6 Nippon Avionics Co Ltd0:c0:60 ID Scandinavia A/S0:c0:61 Solectek Corporation0:c0:63 Morning Star Technologies Inc May be miswrite of 0003C6 0:c0:64 General Datacomm Ind Inc0:c0:65 Scope Communications Inc0:c0:66 Docupoint, Inc.0:c0:67 United Barcode Industries0:c0:68 Philp Drake Electronics Ltd0:c0:69 California Microwave Inc0:c0:6a Zahner-Elektrik Gmbh & Co KG0:c0:6b OSI Plus Corporation0:c0:6c SVEC Computer Corp0:c0:6d Boca Research, Inc.0:c0:6f Komatsu Ltd0:c0:7 Pinnacle Data Systems Inc0:c0:70 Sectra Secure-Transmission AB0:c0:71 Areanex Communications, Inc.0:c0:72 KNX Ltd0:c0:73 Xedia Corporation0:c0:74 Toyoda Automatic Loom Works Ltd0:c0:75 Xante Corporation0:c0:76 I-Data International A-S0:c0:77 Daewoo Telecom Ltd0:c0:78 Computer Systems Engineering0:c0:79 Fonsys Co Ltd0:c0:7a Priva BV0:c0:7b Ascend Communications ISDN bridges/routers0:c0:7d RISC Developments Ltd0:c0:7f Nupon Computing Corp0:c0:8 Seco SRL0:c0:80 Netstar Inc0:c0:81 Metrodata Ltd0:c0:82 Moore Products Co0:c0:84 Data Link Corp Ltd0:c0:85 Canon0:c0:86 The Lynk Corporation0:c0:87 UUNET Technologies Inc0:c0:89 Telindus Distribution0:c0:8a Lauterbach Datentechnik Gmbh0:c0:8b RISQ Modular Systems Inc0:c0:8c Performance Technologies Inc0:c0:8d Tronix Product Development0:c0:8e Network Information Technology0:c0:8f Matsushita Electric Works, Ltd.0:c0:9 KT Technology (s) Pte Inc0:c0:90 Praim S.R.L.0:c0:91 Jabil Circuit, Inc.0:c0:92 Mennen Medical Inc0:c0:93 Alta Research Corp.0:c0:95 Znyx (Network Appliance box); Jupiter Systems (MX-700 series) 0:c0:96 Tamura Corporation0:c0:97 Archipel SA0:c0:98 Chuntex Electronic Co., Ltd.0:c0:9b Reliance Comm/Tec, R-Tec Systems Inc0:c0:9c TOA Electronic Ltd0:c0:9d Distributed Systems Int'l, Inc.0:c0:9f Quanta Computer Inc0:c0:a Micro Craft0:c0:a0 Advance Micro Research, Inc.0:c0:a1 Tokyo Denshi Sekei Co0:c0:a2 Intermedium A/S0:c0:a3 Dual Enterprises Corporation0:c0:a4 Unigraf OY0:c0:a7 SEEL Ltd0:c0:a8 GVC Corporation0:c0:a9 Barron McCann Ltd0:c0:aa Silicon Valley Computer0:c0:ab Jupiter Technology Inc0:c0:ac Gambit Computer Communications0:c0:ad Computer Communication Systems0:c0:ae Towercom Co Inc DBA PC House0:c0:b Norcontrol A.S.0:c0:b0 GCC Technologies,Inc.0:c0:b2 Norand Corporation0:c0:b3 Comstat Datacomm Corporation0:c0:b4 Myson Technology Inc0:c0:b5 Corporate Network Systems Inc0:c0:b6 Meridian Data Inc0:c0:b7 American Power Conversion Corp0:c0:b8 Fraser's Hill Ltd.0:c0:b9 Funk Software Inc0:c0:ba Netvantage0:c0:bb Forval Creative Inc0:c0:bd Inex Technologies, Inc.0:c0:be Alcatel - Sel0:c0:bf Technology Concepts Ltd0:c0:c ARK PC Technology, Inc.0:c0:c0 Shore Microsystems Inc0:c0:c1 Quad/Graphics Inc0:c0:c2 Infinite Networks Ltd.0:c0:c3 Acuson Computed Sonography0:c0:c4 Computer Operational0:c0:c5 SID Informatica0:c0:c6 Personal Media Corp0:c0:c8 Micro Byte Pty Ltd0:c0:c9 Bailey Controls Co0:c0:ca Alfa, Inc.0:c0:cb Control Technology Corporation0:c0:cd Comelta S.A.0:c0:d Advanced Logic Research Inc0:c0:d0 Ratoc System Inc0:c0:d1 Comtree Technology Corporation (EFA also reported) 0:c0:d2 Syntellect Inc0:c0:d4 Axon Networks Inc0:c0:d5 Quancom Electronic Gmbh0:c0:d6 J1 Systems, Inc.0:c0:d9 Quinte Network Confidentiality Equipment Inc0:c0:db IPC Corporation (Pte) Ltd0:c0:dc EOS Technologies, Inc.0:c0:de ZComm Inc0:c0:df Kye Systems Corp0:c0:e Psitech Inc0:c0:e1 Sonic Solutions0:c0:e2 Calcomp, Inc.0:c0:e3 Ositech Communications Inc0:c0:e4 Landis & Gyr Powers Inc0:c0:e5 GESPAC S.A.0:c0:e6 TXPORT0:c0:e7 Fiberdata AB0:c0:e8 Plexcom Inc0:c0:e9 Oak Solutions Ltd0:c0:ea Array Technology Ltd.0:c0:ec Dauphin Technology0:c0:ed US Army Electronic Proving Ground0:c0:ee Kyocera Corporation0:c0:ef Abit Corporation0:c0:f QNX Software Systems Ltd. [also Quantum Software Systems Ltd] 0:c0:f0 Kingston Technology Corporation0:c0:f1 Shinko Electric Co Ltd0:c0:f2 Transition Engineering Inc0:c0:f3 Network Communications Corp0:c0:f4 Interlink System Co., Ltd.0:c0:f5 Metacomp Inc0:c0:f6 Celan Technology Inc.0:c0:f7 Engage Communication, Inc.0:c0:f8 About Computing Inc.0:c0:fa Canary Communications Inc0:c0:fb Advanced Technology Labs0:c0:fc ASDG Incorporated0:c0:fd Prosum0:c0:ff Box Hill Systems Corporation0:dd:0 Ungermann-Bass IBM RT0:dd:1 Ungermann-Bass0:dd:8 Ungermann-Bass0:e0:11 Uniden Corporation0:e0:14 Cisco Ethernet switch0:e0:16 rapid-city (now a part of bay networks)0:e0:1e Cisco Lightstream 10100:e0:29 SMC EtherPower II 10/1000:e0:2c AST - built into 5166M PC motherboard (win95 id's as Intel)0:e0:34 Cisco0:e0:39 Paradyne 7112 T1 DSU/CSU0:e0:4f Cisco0:e0:83 Jato Technologies, Inc.0:e0:8f Cisco Systems Catalyst 29000:e0:98 Linksys PCMCIA card0:e0:a3 Cisco0:e0:b0 Cisco Systems Catalyst 2900/50000:e0:b8 AMD PCNet in a Gateway 20000:e0:c5 BCOM Electronics Inc.0:e0:f7 Cisco0:e0:f9 Cisco0:e0:fe Cisco10:0:5a IBM10:0:90 Hewlett-Packard Advisor products10:0:d4 DEC10:0:e0 Apple A/UX (modified addresses for licensing)2:4:6 BBN internal usage (not registered)2:60:60 3Com2:60:86 Satelcom MegaPac (UK)2:60:8c 3Com IBM PC; Imagen; Valid; Cisco;Macintosh2:7:1 Interlan [now Racal-InterLAN] DEC (UNIBUS or QBUS), Apollo, Cisco 2:7:1 Racal-Datacom2:aa:3c Olivetti2:cf:1f CMC Masscomp; Silicon Graphics; PrimeEXL2:e0:3b Prominet Corporation Gigabit Ethernet Switch2:e6:d3 BTI (Bus-Tech, Inc.) IBM Mainframes2e:2e:2e LAA (Locally Administered Address) for Meditech Systems3c:0:0 3Com dual function (V.34 modem +Ethernet)card40:0:3 Net Ware (?)44:45:53 Microsoft (Windows95 internal"adapters")44:46:49 DFI (Diamond Flower Industries)47:54:43 GTC (Not registered!) (This number is amulticast!)48:44:53 HDS ???48:4c:0 Network Solutions48:54:e8 winbond?4c:42:4c Information Modes software modified addresses (not registered?)52:54:4c Novell 200052:54:ab REALTEK (a Realtek 8029 based PCI Card)56:58:57 Aculab plc audio bridges80:0:10 AT&T [misrepresented as 080010? One source claims this is correct] 80:ad:0 CNET Technology Inc. (Probably an error, see instead 0080AD)8:0:1 Computer Vision8:0:10 AT&T [misrepresentation of 800010?]8:0:11 Tektronix, Inc.8:0:14 Excelan BBN Butterfly, Masscomp, SiliconGraphics8:0:17 National Semiconductor Corp. (used to have Network System Corp., wrongNSC)8:0:1a Tiara? (used to have Data General)8:0:1b Data General8:0:1e Apollo8:0:2 3Com (formerly Bridge)8:0:20 Sun8:0:22 NBI (Nothing But Initials)8:0:23 Matsushita Denso8:0:25 CDC8:0:26 Norsk Data (Nord)8:0:27 PCS Computer Systems GmbH8:0:28 TI Explorer8:0:2b DEC8:0:2e Metaphor8:0:2f Prime Computer Prime 50-Series LHC3008:0:3 ACC (Advanced Computer Communications)8:0:30 CERN8:0:32 Tigan8:0:36 Intergraph CAE stations8:0:37 Fuji Xerox8:0:38 Bull8:0:39 Spider Systems8:0:3b Torus Systems8:0:3d cadnetix8:0:3e Motorola VME bus processor modules8:0:41 DCA (Digital Comm. Assoc.)8:0:44 DSI (DA VID Systems, Inc.)8:0:45 ???? (maybe Xylogics, but they claim not to know this number)8:0:46 Sony8:0:47 Sequent8:0:48 Eurotherm Gauging Systems8:0:49 Univation8:0:4c Encore8:0:4e BICC [3com bought BICC, so may appear on 3com equipment as well] 8:0:5 Symbolics Symbolics LISP machines8:0:51 Experdata8:0:56 Stanford University8:0:57 Evans & Sutherland (?)8:0:58 ??? DECsystem-208:0:5a IBM8:0:6 Siemens Nixdorf PC clone8:0:66 AGFA printers, phototypesetters etc.8:0:67 Comdesign8:0:68 Ridge8:0:69 Silicon Graphics8:0:6a ATTst (?)8:0:6e Excelan8:0:70 Mitsubishi8:0:74 Casio8:0:75 DDE (Danish Data Elektronik A/S)8:0:77 TSL (now Retix)8:0:79 Silicon Graphics8:0:7c Vitalink TransLAN III8:0:8 BBN (Bolt Beranek and Newman, Inc.)8:0:80 XIOS8:0:81 Crosfield Electronics8:0:83 Seiko Denshi8:0:86 Imagen/QMS8:0:87 Xyplex terminal servers8:0:88 McDATA Corporation8:0:89 Kinetics AppleTalk-Ethernet interface8:0:8b Pyramid8:0:8d XyVision XyVision machines8:0:8e Tandem / Solbourne Computer ?8:0:8f Chipcom Corp.8:0:9 Hewlett-Packard8:0:90 Retix, Inc. Bridges8:0:a Nestar Systems8:0:b Unisys8:0:d ICL (International Computers, Ltd.)8:0:e NCR/AT&T8:0:f SMC (Standard Microsystems Corp.)9:0:6a AT&Taa:0:0 DEC obsoleteaa:0:1 DEC obsoleteaa:0:2 DEC obsoleteaa:0:3 DEC Global physical address for some DEC machinesaa:0:4 DEC Local logical address for DECNET systemsc0:0:0 Western Digital (may be reversed 00 00 C0?)ec:10:0 Enance Source Co., Ltd. PC clones(?)。