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IPv4 Multicast Address Ranges

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It is important to remember the multicast addressing ranges when configuring multicast networks.


Range and description of IPv4 multicast addresses

Class D Address Range


Permanent multicast group addresses that are   reserved by the IANA for routing protocols. The addresses identify a group of   network devices and are not used for multicast forwarding.

ASM group addresses that are valid on the entire   network.

Default SSM group addresses that are valid on the   entire network.

Administrative multicast addresses that are valid   only in the local administrative domain. Different administrative domains can   use the same administrative multicast addresses.

 For multicast services the we can use the ASM/SSM range, NOT the administrative range.

Permanent Multicast Group Addresses



All the hosts and routers   on a network segment (similar to a broadcast address)

All multicast routers


Distance Vector Multicast   Routing Protocol (DVMRP) routers

Open Shortest Path First   (OSPF) routers

OSPF designated routers (DRs)

Shared tree (ST) routers

ST hosts

Routing Information   Protocol version 2 (RIP-2) routers

Mobile agents

Dynamic Host   Configuration Protocol (DHCP) servers or proxy agents

All Protocol Independent   Multicast (PIM) routers

Resource Reservation Protocol   (RSVP) encapsulation

Core-based tree (CBT)   routers

Specified Subnetwork   Bandwidth Management (SBM) device

All SBM devices

Virtual Router Redundancy Protocol (VRRP)

IGMPv3 routers


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