Multicast (including Broadcast) Addresses

组播mac是指第40位为1的mac，01:00:5e:x:x:x是ip组播mac。

很多人经常把组播MAC和IP组播MAC混淆，认为只有01-00-5e开头的MAC才是多播MAC地址，这其实个误解。

Since any vendor with a vendor block, can use that for a unique multicast (group) address block, you may want to also check the vendor page if you don't find what you are looking for here.

EthernetTypeAddressFieldUsageMulticast Addresses:01-00-0C-CC-CC-CC-802-CDP (Cisco Discovery Protocol), VTP (Virtual Trunking Protocol)01-00-0C-DD-DD-DD????CGMP (Cisco Group Management Protocol)01-00-10-00-00-20-802-Hughes Lan Systems Terminal Server S/W download01-00-10-FF-FF-20-802-Hughes Lan Systems Terminal Server S/W request01-00-1D-00-00-00-802-Cabletron PC-OV PC discover (on demand)01-00-1D-42-00-00-802-Cabletron PC-OV Bridge discover (on demand)01-00-1D-52-00-00-802-Cabletron PC-OV MMAC discover (on demand)01-00-3C-xx-xx-xx????Auspex Systems (Serverguard)01-00-5E-00-00-000800DoD Internet Multicast (RFC-1112)through01-00-5E-7F-FF-FF01-00-5E-80-00-00????DoD Internet reserved by IANAthrough01-00-5E-FF-FF-FF01-00-81-00-00-00????Synoptics Network Management01-00-81-00-00-02????Synoptics Network Management01-00-81-00-01-00-802-(snap type 01A2) Bay Networks (Synoptics) autodiscovery01-00-81-00-01-01-802-(snap type 01A1) Bay Networks (Synoptics) autodiscovery01-20-25-00-00-00       873A    Control Technology Inc's Industrial Ctrl Proto.through01-20-25-7F-FF-FF01-80-24-00-00-008582Kalpana Etherswitch every 60 seconds01-80-C2-00-00-00-802-Spanning tree (for bridges)01-80-C2-00-00-01-802-802.1 alternate Spanning multicastthrough01-80-C2-00-00-0F01-80-C2-00-00-10-802-Bridge Management01-80-C2-00-00-11-802-Load Server01-80-C2-00-00-12-802-Loadable Device01-80-C2-00-00-14-802-OSI Route level 1 (within area) IS hello?01-80-C2-00-00-15-802-OSI Route level 2 (between area) IS hello?01-80-C2-00-01-00-802-FDDI RMT Directed Beacon01-80-C2-00-01-10-802-FDDI status report frame01-DD-00-FF-FF-FF       7002    Ungermann-Bass boot-me requests01-DD-01-00-00-00       7005    Ungermann-Bass Spanning Tree[ The following block of addresses (03-...) are used by various][ standards.  Some (marked [TR?]) are suspected of only being][ used on Token Ring for group addresses of Token Ring specific][ functions, reference ISO 8802-5:1995 aka. IEEE 802.5:1995 for][ some info.  These in the Ethernet order for this list.  On][ Token Ring they appear reversed.  They should never appear on][ Ethernet.  Others, not so marked, are normal reports (may be][ seen on either).]03-00-00-00-00-01-802-NETBIOS [TR?]03-00-00-00-00-02-802-Locate - Directory Server [TR?]03-00-00-00-00-04-802-Synchronous Bandwidth Manager [TR?]03-00-00-00-00-08-802-Configuration Report Server [TR?]03-00-00-00-00-10-802-Ring Error Monitor [TR?]03-00-00-00-00-10       80D5    (OS/2 1.3 EE + Communications Manager)03-00-00-00-00-20-802-Network Server Heartbeat [TR?]03-00-00-00-00-40-802-Ring Parameter Monitor [TR?]03-00-00-00-00-40       80D5    (OS/2 1.3 EE + Communications Manager)03-00-00-00-00-80-802-Active Monitor [TR?]03-00-00-00-01-00       -802-   OSI All-IS Multicast03-00-00-00-02-00       -802-   OSI All-ES Multicast03-00-00-00-04-00-802-LAN Manager [TR?]03-00-00-00-08-00-802-Ring Wiring Concentrator [TR?]03-00-00-00-10-00-802-LAN Gateway [TR?]03-00-00-00-20-00-802-Ring Authorization Server [TR?]03-00-00-00-40-00-802-IMPL Server [TR?]03-00-00-00-80-00-802-Bridge [TR?]03-00-00-01-00-00-802-   throughuser-defined (per 802 spec?)03-00-40-00-00-00-802-03-00-00-20-00-00       -802-   IP Multicast Address (RFC1469)03-00-00-80-00-00       -802-   Discovery Client03-00-FF-FF-FF-FF       -802-   All Stations Address09-00-02-04-00-01?8080?Vitalink printer messages09-00-02-04-00-02?8080?Vitalink bridge management09-00-07-00-00-00-802-AppleTalk Zone multicast addresses    through09-00-07-00-00-FC09-00-07-FF-FF-FF-802-AppleTalk broadcast address09-00-09-00-00-018005HP Probe09-00-09-00-00-01-802-HP Probe09-00-09-00-00-048005?HP DTC09-00-0D-XX-XX-XX-802-ICL Oslan Multicast09-00-0D-02-00-00????ICL Oslan Service discover only on boot09-00-0D-02-0A-38????ICL Oslan Service discover only on boot09-00-0D-02-0A-39????ICL Oslan Service discover only on boot09-00-0D-02-0A-3C????ICL Oslan Service discover only on boot09-00-0D-02-FF-FF????ICL Oslan Service discover only on boot09-00-0D-09-00-00????ICL Oslan Service discover as required09-00-1E-00-00-008019?Apollo DOMAIN09-00-26-01-00-01?8038Vitalink TransLAN bridge management09-00-2B-00-00-006009?DEC MUMPS?09-00-2B-00-00-018039DEC DSM/DDP09-00-2B-00-00-02803B?DEC VAXELN?09-00-2B-00-00-038038DEC Lanbridge Traffic Monitor (LTM)09-00-2B-00-00-04????DEC MAP (or OSI?) End System Hello?09-00-2B-00-00-05????DEC MAP (or OSI?) Intermediate System Hello?09-00-2B-00-00-06803D?DEC CSMA/CD Encryption?09-00-2B-00-00-078040?DEC NetBios Emulator?09-00-2B-00-00-0F6004DEC Local Area Transport (LAT)09-00-2B-00-00-1x????DEC Experimental09-00-2B-01-00-008038DEC LanBridge Copy packets (All bridges)09-00-2B-01-00-018038DEC LanBridge Hello packets (All local bridges)1 packet per second, sent by thedesignated LanBridge09-00-2B-02-00-00????DEC DNA Level 2 Routing Layer routers?09-00-2B-02-01-00803C?DEC DNA Naming Service Advertisement?09-00-2B-02-01-01803C?DEC DNA Naming Service Solicitation?09-00-2B-02-01-098048DEC Availability Manager for Distributed Systems DECamds09-00-2B-02-01-02803E?DEC Distributed Time Service09-00-2B-03-xx-xx????DEC default filtering by bridges?09-00-2B-04-00-008041?DEC Local Area System Transport (LAST)?09-00-2B-23-00-00803A?DEC Argonaut Console?09-00-39-00-70-00?????Spider Systems Bridge Hello packet?09-00-4C-00-00-00-802-BICC 802.1 management09-00-4C-00-00-02-802-BICC 802.1 management09-00-4C-00-00-06-802-BICC Local bridge STA 802.1(D) Rev609-00-4C-00-00-0C-802-BICC Remote bridge STA 802.1(D) Rev809-00-4C-00-00-0F-802-BICC Remote bridge ADAPTIVE ROUTING (e.g. to Retix)09-00-4E-00-00-02?8137?Novell IPX (BICC?)09-00-56-00-00-00????Stanford reservedthrough09-00-56-FE-FF-FF09-00-56-FF-00-00805CStanford V Kernel, version 6.0through09-00-56-FF-FF-FF09-00-6A-00-01-00????TOP NetBIOS.09-00-77-00-00-00-802-Retix Bridge Local Management System09-00-77-00-00-01-802-Retix spanning tree bridges 09-00-77-00-00-02-802-Retix Bridge Adaptive routing09-00-7C-01-00-01????Vitalink DLS Multicast09-00-7C-01-00-03????Vitalink DLS Inlink09-00-7C-01-00-04????Vitalink DLS and non DLS Multicast09-00-7C-02-00-058080?Vitalink diagnostics09-00-7C-05-00-018080?Vitalink gateway?09-00-7C-05-00-02????Vitalink Network Validation Message09-00-87-80-FF-FF       0889    Xyplex Terminal Servers09-00-87-90-FF-FF       0889    Xyplex Terminal Servers0D-1E-15-BA-DD-06????HP33-33-00-00-00-0086DDIPv6 Neighbor Discoverythrough33-33-FF-FF-FF-FFAB-00-00-01-00-006001DEC Maintenance Operation Protocol (MOP)Dump/Load AssistanceAB-00-00-02-00-006002DEC Maintenance Operation Protocol (MOP)Remote Console1 System ID packet every 8-10 minutes, by every:DEC LanBridgeDEC DEUNA interfaceDEC DELUA interfaceDEC DEQNA interface (in a certain mode)AB-00-00-03-00-006003DECNET Phase IV end node Hello packets1 packet every 15 seconds, sent by each DECNET hostAB-00-00-04-00-006003DECNET Phase IV Router Hello packets1 packet every 15 seconds, sent by the DECNET routerAB-00-00-05-00-00????Reserved DECthroughAB-00-03-FF-FF-FFAB-00-03-00-00-006004DEC Local Area Transport (LAT) - oldAB-00-04-00-xx-xx????Reserved DEC customer private useAB-00-04-01-xx-yy6007DEC Local Area VAX Cluster groupsSystem Communication Architecture (SCA)[ Note, used to have a bunch of things here starting C0, but][ these were bit reversed from Ethernet order and Token Ring][ specific.  See above under 03 for them in Ethernet order/]CF-00-00-00-00-009000Ethernet Configuration Test protocol (Loopback)FF-FF-00-60-00-0481D6LantasticFF-FF-00-40-00-0181D6LantasticFF-FF-01-E0-00-0481D6LantasticBroadcast Address:FF-FF-FF-FF-FF-FF0600XNS packets, Hello or gateway search?6 packets every 15 seconds, per XNS stationFF-FF-FF-FF-FF-FF0800IP (e.g. RWHOD via UDP) as neededFF-FF-FF-FF-FF-FF0804CHAOSFF-FF-FF-FF-FF-FF0806ARP (for IP and CHAOS) as neededFF-FF-FF-FF-FF-FF0BADBanyanFF-FF-FF-FF-FF-FF1600VALID packets, Hello or gateway search?1 packets every 30 seconds, per VALID stationFF-FF-FF-FF-FF-FF8035Reverse ARPFF-FF-FF-FF-FF-FF807CMerit Internodal (INP)FF-FF-FF-FF-FF-FF809BEtherTalkFF-FF-FF-FF-FF-FF90013Com (ex Bridge) Name ServiceFF-FF-FF-FF-FF-FF90023Com PCS/TCP Hello, Approx. 1 per minute per w/s