IPv6 Multicast Address Assignments
RFC 2375

Document Type RFC - Informational (July 1998; No errata)
Authors Steve Deering , Bob Hinden 
Last updated 2013-03-02
Stream IETF
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Network Working Group                                         R. Hinden
Request for Comments: 2375                             Ipsilon Networks
Category: Informational                                      S. Deering
                                                              July 1998

                   IPv6 Multicast Address Assignments

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (1998).  All Rights Reserved.

1.0 Introduction

   This document defines the initial assignment of IPv6 multicast
   addresses.  It is based on the "IP Version 6 Addressing Architecture"
   [ADDARCH] and current IPv4 multicast address assignment found in
   It adapts the IPv4 assignments that are relevant to IPv6 assignments.
   IPv4 assignments that were not relevant were not converted into IPv6
   assignments.  Comments are solicited on this conversion.

   All other IPv6 multicast addresses are reserved.

   Sections 2 and 3 specify reserved and preassigned IPv6 multicast

   [ADDRARCH] defines rules for assigning new IPv6 multicast addresses.

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   document are to be interpreted as described in [RFC 2119].

2. Fixed Scope Multicast Addresses

   These permanently assigned multicast addresses are valid over a
   specified scope value.

Hinden & Deering             Informational                      [Page 1]
RFC 2375           IPv6 Multicast Address Assignments          July 1998

2.1 Node-Local Scope

   FF01:0:0:0:0:0:0:1     All Nodes Address                  [ADDARCH]
   FF01:0:0:0:0:0:0:2     All Routers Address                [ADDARCH]

2.2 Link-Local Scope

   FF02:0:0:0:0:0:0:1     All Nodes Address                  [ADDARCH]
   FF02:0:0:0:0:0:0:2     All Routers Address                [ADDARCH]
   FF02:0:0:0:0:0:0:3     Unassigned                             [JBP]
   FF02:0:0:0:0:0:0:4     DVMRP Routers                  [RFC1075,JBP]
   FF02:0:0:0:0:0:0:5     OSPFIGP                        [RFC2328,Moy]
   FF02:0:0:0:0:0:0:6     OSPFIGP Designated Routers     [RFC2328,Moy]
   FF02:0:0:0:0:0:0:7     ST Routers                    [RFC1190,KS14]
   FF02:0:0:0:0:0:0:8     ST Hosts                      [RFC1190,KS14]
   FF02:0:0:0:0:0:0:9     RIP Routers                        [RFC2080]
   FF02:0:0:0:0:0:0:A     EIGRP Routers                    [Farinacci]
   FF02:0:0:0:0:0:0:B     Mobile-Agents                 [Bill Simpson]

   FF02:0:0:0:0:0:0:D     All PIM Routers                  [Farinacci]
   FF02:0:0:0:0:0:0:E     RSVP-ENCAPSULATION                  [Braden]

   FF02:0:0:0:0:0:1:1     Link Name                       [Harrington]
   FF02:0:0:0:0:0:1:2     All-dhcp-agents              [Bound,Perkins]

   FF02:0:0:0:0:1:FFXX:XXXX     Solicited-Node Address       [ADDARCH]

2.3 Site-Local Scope

   FF05:0:0:0:0:0:0:2       All Routers Address              [ADDARCH]

   FF05:0:0:0:0:0:1:3       All-dhcp-servers           [Bound,Perkins]
   FF05:0:0:0:0:0:1:4       All-dhcp-relays            [Bound,Perkins]
   FF05:0:0:0:0:0:1:1000    Service Location                 [RFC2165]

3.0 All Scope Multicast Addresses

   These permanently assigned multicast addresses are valid over all
   scope ranges.  This is shown by an "X" in the scope field of the
   address that means any legal scope value.

   Note that, as defined in [ADDARCH], IPv6 multicast addresses which
   are only different in scope represent different groups.  Nodes must
   join each group individually.

   The IPv6 multicast addresses with variable scope are as follows:

Hinden & Deering             Informational                      [Page 2]
RFC 2375           IPv6 Multicast Address Assignments          July 1998

   FF0X:0:0:0:0:0:0:0     Reserved Multicast Address         [ADDARCH]

   FF0X:0:0:0:0:0:0:100   VMTP Managers Group           [RFC1045,DRC3]
   FF0X:0:0:0:0:0:0:101   Network Time Protocol (NTP)   [RFC1119,DLM1]
   FF0X:0:0:0:0:0:0:102   SGI-Dogfight                           [AXC]
   FF0X:0:0:0:0:0:0:103   Rwhod                                  [SXD]
   FF0X:0:0:0:0:0:0:104   VNP                                   [DRC3]
   FF0X:0:0:0:0:0:0:105   Artificial Horizons - Aviator          [BXF]
   FF0X:0:0:0:0:0:0:106   NSS - Name Service Server             [BXS2]
   FF0X:0:0:0:0:0:0:107   AUDIONEWS - Audio News Multicast      [MXF2]
   FF0X:0:0:0:0:0:0:108   SUN NIS+ Information Service          [CXM3]
   FF0X:0:0:0:0:0:0:109   MTP Multicast Transport Protocol       [SXA]
   FF0X:0:0:0:0:0:0:10A   IETF-1-LOW-AUDIO                       [SC3]
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