Editing Multicast address (section)

===Notable IPv4 multicast addresses===
The following table is a list of notable well-known IPv4 addresses that are reserved for [[IP multicast]]ing and that are registered with the [[Internet Assigned Numbers Authority]] (IANA).<ref name="IANA IP"/>

{| class="wikitable"
|-
!IP multicast address
!Description
!Routable
|-
|224.0.0.0
|Base address (reserved)
|{{No}}
|-
|224.0.0.1
|The ''All Hosts'' multicast group addresses all hosts on the same network segment.
|{{No}}
|-
|224.0.0.2
|The ''All Routers'' multicast group addresses all routers on the same network segment.
|{{No}}
|-
|224.0.0.4
|This address is used in the [[Distance Vector Multicast Routing Protocol]] (DVMRP) to address multicast routers.
|{{No}}
|-
|224.0.0.5
|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}}
|-
|224.0.0.6
|The OSPF ''All Designated Routers'' (DR) address is used to send OSPF routing information to designated routers on a network segment.
|{{No}}
|-
|224.0.0.9
|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}}
|-
|224.0.0.10
|The [[Enhanced Interior Gateway Routing Protocol]] (EIGRP) group address is used to send routing information to all EIGRP routers on a network segment.
|{{No}}
|-
|224.0.0.13
|[[Protocol Independent Multicast]] (PIM) Version 2
|{{No}}
|-
|224.0.0.18
|[[Virtual Router Redundancy Protocol]] (VRRP)
|{{No}}
|-
|224.0.0.19–21
|[[IS-IS]] over IP
|{{No}}
|-
|224.0.0.22
|[[Internet Group Management Protocol]] (IGMP) version 3{{Ref RFC|3376|rsection=4.2.14}}
|{{No}}
|-
|224.0.0.102
|[[Hot Standby Router Protocol]] version 2 (HSRPv2) / [[Gateway Load Balancing Protocol]] (GLBP)
|{{No}}
|-
|224.0.0.107
| [[Precision Time Protocol]] (PTP) version 2 peer delay measurement messaging
|{{No}}
|-
|224.0.0.251
|[[Multicast DNS]] (mDNS) address
|{{No}}
|-
|224.0.0.252
|[[Link-local Multicast Name Resolution]] (LLMNR) address
|{{No}}
|-
|224.0.0.253
|[[Teredo tunneling]] client discovery address{{Ref RFC|4380|rsection=2.17}}
|{{No}}
|-
|224.0.1.1
|[[Network Time Protocol]] clients listen on this address for protocol messages when operating in multicast mode.
|{{Yes}}
|-
|224.0.1.22
|[[Service Location Protocol]] version 1 general
|{{Yes}}
|-
|224.0.1.35
|[[Service Location Protocol]] version 1 directory agent
|{{Yes}}
|-
|224.0.1.39
|The Cisco multicast router ''AUTO-RP-ANNOUNCE'' address is used by RP mapping agents to listen for candidate announcements.
|{{Yes}}
|-
|224.0.1.40
|The Cisco multicast router ''AUTO-RP-DISCOVERY'' address is the destination address for messages from the RP mapping agent to discover candidates.
|{{Yes}}
|-
|224.0.1.41
|[[H.323 Gatekeeper]] discovery address
|{{Yes}}
|-
|224.0.1.129–132
|[[Precision Time Protocol]] (PTP) version 1 messages (Sync, Announce, etc.) except peer delay measurement
|{{Yes}}
|-
|224.0.1.129
|[[Precision Time Protocol]] (PTP) version 2 messages (Sync, Announce, etc.) except peer delay measurement
|{{Yes}}
|-
|224.0.23.12
|[[KNX#IP|KNXnet/IP]] discovery<ref>{{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}}</ref>
|{{Yes}}
|-
|239.255.255.250
|[[Simple Service Discovery Protocol]] address
|{{Yes}}
|-
|239.255.255.253
|[[Service Location Protocol]] version 2 address
|{{Yes}}
|}