Ethernet Numbers

Last Updated
2014-04-10
Note
This page has assignments by IANA as specified in [RFC7042]
to be under the IANA OUI. For some information on IEEE 802 number 
assignments by the IEEE Registration Authority and how to contact 
that authority, see the [IANA registry ieee-802-numbers].

  
Available Formats

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Registries included below

IANA MAC ADDRESS BLOCK

Registration Procedure(s)
See [RFC 7042].
Expert(s)
Donald Eastlake (primary), Dan Romascanu (secondary)
Reference
[RFC7042]
Note
IANA allocates addresses under the IANA OUI (00-00-5E) as explained in 
[RFC7042]. Unicast addresses under the IANA OUI start 
with 00-00-5E, while multicast addresses under the IANA OUI start with 
01-00-5E. In the lists below, these initial 3 bytes are omitted for 
brevity. As described in [RFC7042], 48-bit MAC addresses 
in the range 33-33-00-00-00-00 to 33-33-FF-FF-FF-FF are used for IPv6 multicast.

When the available space for either multicast or unicast EUI-48
identifiers under OUI 00-00-5E has been 90% or more exhausted, IANA
should request an additional OUI from the IEEE Registration Authority
for further IANA assignment use. The appointed Expert(s) should
monitor for this condition and notify IANA.  
    

IANA Unicast 48-bit MAC Addresses

Note
These values are prefixed with 00-00-5E.
        
      
Available Formats

CSV
Range Registration Procedures
Small to medium assignments of up to 65536 identifiers Expert Review
Large assignments of 131072 or more identifiers IESG Ratification, as defined in [RFC7042], Section 5.1
Assignment(s) in the 00-00-00 to 00-00-FF range IESG Ratification, as defined in [RFC7042], Section 5.1
Addresses Usage Reference
00-00-00 to 00-00-FF Reserved [RFC7042]
00-01-00 to 00-01-FF VRRP (Virtual Router Redundancy Protocol) [RFC5798]
00-02-00 to 00-02-FF VRRP IPv6 (Virtual Router Redundancy Protocol IPv6) [RFC5798]
00-03-00 to 00-51-FF Unassigned
00-52-00 PacketPWEthA [RFC6658]
00-52-01 PacketPWEthB [RFC6658]
00-52-02 to 00-52-12 Unassigned (small allocations)
00-52-13 Proxy Mobile IPv6 [RFC6543]
00-52-14 to 00-52-FF Unassigned (small allocations)
00-53-00 to 00-53-FF Documentation [RFC7042]
00-54-00 to FF-FF-FF Unassigned

IANA Multicast 48-bit MAC Addresses

Note
These values are prefixed with 01-00-5E.
        
      
Available Formats

CSV
Range Registration Procedures
Small to medium assignments of up to 65536 identifiers Expert Review
Large assignments of 131072 or more identifiers IESG Ratification, as defined in [RFC7042], Section 5.1
Addresses Usage Reference
00-00-00 to 7F-FF-FF IPv4 Multicast [RFC1112]
80-00-00 to 8F-FF-FF MPLS Multicast [RFC5332]
90-00-00 MPLS-TP p2p [RFC-ietf-mpls-tp-ethernet-addressing-08]
90-00-01 Bidirectional Forwarding Detection (BFD) on Link Aggregation Group (LAG) Interfaces [RFC7130]
90-00-02 AllL1MI-ISs [RFC6822]
90-00-03 AllL2MI-ISs [RFC6822]
90-00-04 to 90-00-FF Unassigned (small allocations)
90-01-00 to 90-0F-FF Unassigned
90-10-00 to 90-10-FF Documentation [RFC7042]
90-11-00 to FF-FF-FF Unassigned

IANA 64-bit MAC Addresses

Note
These values are prefixed with 00-00-5E to form unicast MAC
addresses, with 01-00-5E to form multicast MAC addresses, with
02-00-5E to form unicast modified EUI-64 addresses, and with
03-00-5E to form multicast modified EUI-64 addresses. See 
[RFC7042] for more details.
      
      
Available Formats

CSV
Range Registration Procedures
Small to medium assignments of up to 268435456 identifiers Expert Review
Assignments of any size, including blocks of 536870912 or more IESG Ratification, as defined in [RFC7042], Section 5.1
Assignments from Reserved ranges IESG Ratification, as defined in [RFC7042], Section 5.1
Addresses Usage Reference
00-00-00-00-00 to 0F-FF-FF-FF-FF Reserved [RFC7042]
10-00-00-00-00 to 10-00-00-00-FF Documentation [RFC7042]
10-00-00-01-00 to FC-FF-FF-FF-FF Unassigned
FD-00-00-00-00 to FD-FF-FF-FF-FF Reserved [RFC7042]
FE-00-00-00-00 to FE-FF-FF-FF-FF IPv4 Addr Holders [RFC7042]
FF-00-00-00-00 to FF-FD-FF-FF-FF Reserved [RFC7042]
FF-FE-00-00-00 to FF-FE-FF-FF-FF IANA EUI-48 Holders [RFC7042]
FF-FF-00-00-00 to FF-FF-FF-FF-FF Reserved [RFC7042]

The CFxxxx Series

Note
[RFC2153] described a method of using a "pseudo OUI" for
certain purposes when there is no appropriate regular OUI assigned.
The registry for these is on the PPP Parameters IANA web page.
The CF series registry has been closed by [RFC5342].
Please see: [IANA registry ppp-numbers].
No registrations at this time.

SNAP Protocol Numbers

Registration Procedure(s)
Expert Review
Expert(s)
Donald Eastlake (primary), Dan Romascanu (secondary)
Reference
[RFC7042]
Note
The SNAP protocol number assignments use the IANA OUI. Values 0000 and FFFF require 
IESG Ratification as described in section 5.1 of [RFC7042].
    
    
Available Formats

CSV
Protocol Number (decimal) Protocol Number (hex) Description References
0000 0000 reserved [RFC7042]
0001 0001 MARS Data Messages (short form) [RFC2022]
0002 0002 reserved for future NHRP use [RFC2332]
0003 0003 MARS/NHRP Control Messages [RFC2022][RFC2332]
0004 0004 MARS Data Messages (long form) [RFC2022]
0005 0005 SCSP - Server Cache Sync Protocol [RFC2334]
0006 0006 VRID - Virtual Router MAC Address [S_Knight]
0007 0007 L2TP [RFC3070]
0008 0008 Virtual Private Network ID [RFC2684]
0009-0065 0009-0041 Unassigned
0066 0042 Documentation Use [RFC7042]
0067-65534 0043-FFFE Unassigned
65535 FFFF Reserved [RFC7042]

People

ID Name Contact URI Last Updated
[S_Knight] S. Knight mailto:steven.knight&ascend.com 1997-11