Multicast address#IPv6

|Base address (reserved)

|{{No}}

|The All Hosts multicast group addresses all hosts on the same network segment.

|{{No}}

|The All Routers multicast group addresses all routers on the same network segment.

|{{No}}

|This address is used in the Distance Vector Multicast Routing Protocol (DVMRP) to address multicast routers.

|{{No}}

|The Open Shortest Path First (OSPF) All OSPF Routers address is used to send Hello packets to all OSPF routers on a network segment.

|{{No}}

|The OSPF All Designated Routers (DR) address is used to send OSPF routing information to designated routers on a network segment.

|{{No}}

|The Routing Information Protocol (RIP) version 2 group address is used to send routing information to all RIP2-aware routers on a network segment.

|{{No}}

|The Enhanced Interior Gateway Routing Protocol (EIGRP) group address is used to send routing information to all EIGRP routers on a network segment.

|{{No}}

|Protocol Independent Multicast (PIM) Version 2

|{{No}}

|Virtual Router Redundancy Protocol (VRRP)

|{{No}}

|IS-IS over IP

|{{No}}

|Internet Group Management Protocol (IGMP) version 3{{Ref RFC|3376|rsection=4.2.14}}

|{{No}}

|Hot Standby Router Protocol version 2 (HSRPv2) / Gateway Load Balancing Protocol (GLBP)

|{{No}}

| Precision Time Protocol (PTP) version 2 peer delay measurement messaging

|{{No}}

|Multicast DNS (mDNS) address

|{{No}}

|Link-local Multicast Name Resolution (LLMNR) address

|{{No}}

|Teredo tunneling client discovery address{{Ref RFC|4380|rsection=2.17}}

|{{No}}

|Network Time Protocol clients listen on this address for protocol messages when operating in multicast mode.

|{{Yes}}

|Service Location Protocol version 1 general

|{{Yes}}

|Service Location Protocol version 1 directory agent

|{{Yes}}

|The Cisco multicast router AUTO-RP-ANNOUNCE address is used by RP mapping agents to listen for candidate announcements.

|{{Yes}}

|The Cisco multicast router AUTO-RP-DISCOVERY address is the destination address for messages from the RP mapping agent to discover candidates.

|{{Yes}}

|H.323 Gatekeeper discovery address

|{{Yes}}

|Precision Time Protocol (PTP) version 1 messages (Sync, Announce, etc.) except peer delay measurement

|{{Yes}}

|Precision Time Protocol (PTP) version 2 messages (Sync, Announce, etc.) except peer delay measurement

|{{Yes}}

|KNXnet/IP discovery{{Cite web |title=IPv4 Multicast Address Space Registry |url=https://www.iana.org/assignments/multicast-addresses/multicast-addresses.xhtml |access-date=2024-06-30 |website=www.iana.org}}

|{{Yes}}

|Simple Service Discovery Protocol address

|{{Yes}}

|Service Location Protocol version 2 address

|{{Yes}}

|+Multicast address scope

!IPv6 addressx is a place holder indicating that the value of the flags field is unimportant in the current discussion.

!IPv4 equivalent{{Ref RFC|2365|rsection=8}}

!Scope{{Ref RFC|7346}}

!Purpose

|

|Reserved

|

|Interface-local

|Packets with this destination address may not be sent over any network link, but must remain within the current node; this is the multicast equivalent of the unicast loopback address.

|{{mono|224.0.0.0/24}}

|Link-local

|Packets with this destination address may not be routed anywhere.

|{{mono|239.255.0.0/16}}

|Realm-Local scope{{Ref RFC|7346}}

|Local multicast particular to a network technology

|

|Admin-local

|The smallest scope that must be administratively configured.

|

|Site-local

|Restricted to the local physical network.

|{{mono|239.192.0.0/14}}

|Organization-local

|Restricted to networks used by the organization administering the local network. (For example, these addresses might be used over VPNs; when packets for this group are routed over the public internet (where these addresses are not valid), they would have to be encapsulated in some other protocol.)

|{{mono|224.0.1.0-238.255.255.255}}

|Global scope

|Eligible to be routed over the public internet.

! Address

! Description

| All nodes on the local network segment

| All routers on the local network segment

| OSPFv3 All SPF routers

| OSPFv3 All DR routers

| IS-IS for IPv6 routers

| RIP routers

| EIGRP routers

| PIM routers

| Virtual Router Redundancy Protocol (VRRP) version 3

| MLDv2 reports{{Ref RFC|3810}}

| All DHCPv6 servers and relay agents on the local network segment{{Ref RFC|8415}}

| All LLMNR hosts on the local network segment{{Ref RFC|4795}}

| All DHCPv6 servers on the local network site{{Ref RFC|8415}}

| Simple Service Discovery Protocol

| Multicast DNS

| Network Time Protocol

| Network Information Service

| Precision Time Protocol (PTP) version 2 messages (Sync, Announce, etc.) except peer delay measurement

| Precision Time Protocol (PTP) version 2 peer delay measurement messages

| Used for experiments

!Block

!Ethernet multicast address

!Ethertype

!Usage

01-80-C2{{cite web |title=Standard Group MAC Address - Public Listing |url=https://standards.ieee.org/products-programs/regauth/grpmac/public/ |publisher=IEEE-SA |access-date=30 November 2022}}

IEEE (802 group)

|rowspan="3"|

{{macaddr|01-80-C2-00-00-00}}

|colspan="2" style="background-color:#def"| Local LAN Segment, stopping at STP-capable switches

|Spanning Tree Protocol (for bridges) IEEE 802.1D

|Link Layer Discovery Protocol (additional)

|0x8808

|Ethernet flow control (pause frame) IEEE 802.3x

|0x8809

|"Slow protocols" including Ethernet OAM Protocol (IEEE 802.3ah) and Link Aggregation Control Protocol (LACP)

{{macaddr|01-80-C2-00-00-03}}

|colspan="2" style="background-color:#def"| Local LAN Segment until next multi-port ("non-TPMR") switch

|Port authentication (IEEE 802.1X EAPOL)

|Link Layer Discovery Protocol (additional)

|SNAP (length)

|Spanning Tree Protocol (for provider bridges) IEEE 802.1ad

|0x88F5

|Multiple VLAN Registration Protocol (for provider bridges) IEEE 802.1ad

|colspan="2" style="background-color:#def"| Local LAN Link, never crosses another device

|Link Layer Discovery Protocol (primary)

|Precision Time Protocol (PTP) version 2 over Ethernet (802.1AS)

|0x88F5

|GARP VLAN Registration Protocol (also known as IEEE 802.1Q GVRP)

Multiple VLAN Registration Protocol (MVRP)

|0x8902

|Ethernet CFM Protocol IEEE 802.1ag

01-1B-19

IEEE (TC9)

|{{macaddr|01-1B-19-00-00-00}}

|0x88F7

|Precision Time Protocol (PTP) version 2 over Ethernet (native layer-2)
for electing the Grandmaster clock and advanced applications, otherwise {{MACaddr|01-80-C2-00-00-0E}}

01-00-5E{{cite web |title=IANA Multicast 48-bit MAC Addresses |url=https://www.iana.org/assignments/ethernet-numbers/ethernet-numbers.xhtml#ethernet-numbers-3 |publisher=IANA |access-date=31 January 2021}}

ICANN/IANA

|{{macaddr|01-00-5E-00-00-00}} through
{{macaddr|01-00-5E-7F-FF-FF}}

|0x0800

|IPv4 Multicast:{{Ref RFC|1112}} Insert the low 23 bits of the multicast IPv4 address into the Ethernet address{{Ref RFC|7042|rsection=2.1.1}}

33-33-xx

locally administered

|{{MACaddr|33-33-00-00-00-00}} through
{{MACaddr|33-33-FF-FF-FF-FF}}

|0x86DD

|IPv6 multicast:{{Ref RFC|2464}} The low 32 bits an Ethernet address for IPv6 multicast traffic are the low 32 bits of the multicast IPv6 address used.{{Ref RFC|7042|rsection=2.3.1}} For example, IPv6 multicast traffic using the address {{IPaddr|ff02::d}} uses the MAC address {{MACaddr|33-33-00-00-00-0d}}, and traffic to {{IPaddr|ff05::1:3}} goes to the MAC address {{MACaddr|33-33-00-01-00-03}}.

01-0C-CD

IEC

|{{macaddr|01-0C-CD-01-00-00}} through
{{macaddr|01-0C-CD-01-01-FF}}

|0x88B8

|IEC 61850-8-1 GOOSE Type 1/1A

|0x88B9

|GSSE (IEC 61850 8-1)

|0x88BA

|Multicast sampled values (IEC 61850 8-1)

01-00-0C

Cisco Systems

|{{macaddr|01-00-0C-CC-CC-CC}}

|SNAP (length)

|Cisco Discovery Protocol (CDP), VLAN Trunking Protocol (VTP), Unidirectional Link Detection (UDLD)

|SNAP (length)

|Cisco Shared Spanning Tree Protocol Address{{citation needed|date=April 2020}}