CCNP: Building Cisco Multilayer Switched Networks Study Guide (642-811)

Certain Class D IP networks in the range of 224.0.0.0 through 239.255.255.255 are used for host extensions for IP multicasting as specified in the Request for Comments (RFC) 1112 standard created by the Internet Engineering Task Force (IETF). The well-known addresses are assigned and maintained by the Internet Address Number Authority (IANA). RFC 1112 specifies the extensions required of a host implementation of the Internet Protocol (IP) to support multicasting.

A lot of abbreviations and acronyms are used in this appendix. The most important, found in the well-known addresses, are listed here:

DHCP  Dynamic Host Configuration Protocol

DVMRP  Distance Vector Multicast Routing Protocol

OSPF  Open Shortest Path First

PIM  Protocol Independent Multicast

RIP  Routing Information Protocol

RP  Route processor

This appendix describes the multicast addresses, the purpose of each address, and the RFC or contact acronym.

Warning 

These addresses are subject to change. If you cannot find an address listed here that appears to be assigned, refer to the following location: www.iana.org/assignments/multicast-addresses.

Table B.1: Multicast Addresses:

Address

Purpose

Reference/Contact Acronym

224.0.0.0

Base Address (Reserved)

RFC1112/JBP

224.0.0.1

All Systems on this Subnet

RFC1112/JBP

224.0.0.2

All Routers on this Subnet

JBP

224.0.0.3

Unassigned

JBP

224.0.0.4

DVMRP Routers

RFC1075/JBP

224.0.0.5

OSPFIGP All Routers

RFC2328/JXM1

224.0.0.6

OSPFIGP Designated Routers

RFC2328/JXM1

224.0.0.7

ST Routers

RFC1190/KS14

224.0.0.8

ST Hosts

RFC1190/KS14

224.0.0.9

RIP2 Routers

RFC1723/GSM11

224.0.0.10

IGRP Routers

Farinacci

224.0.0.11

Mobile-Agents

Bill Simpson

224.0.0.12

DHCP Server/Relay Agent

RFC1884

224.0.0.13

All PIM Routers

Farinacci

224.0.0.14

RSVP-ENCAPSULATION

Braden

224.0.0.15

All-cbt-routers

Ballardie

224.0.0.16

Designated-sbm

Baker

224.0.0.17

All-sbms

Baker

224.0.0.18

VRRP

Hinden

224.0.0.19

IP All L1Iss

Przygienda

224.0.0.20

IP All L2Iss

Przygienda

224.0.0.21

IP All IntermediateSystems

Przygienda

224.0.0.22

IGMP

Deering

224.0.0.23

GLOBECAST-ID

Scannell

224.0.0.24

Unassigned

JBP

224.0.0.25

Router-to-Switch

Wu

224.0.0.26

Unassigned

JBP

224.0.0.27

Al MPP Hello

Martinicky

224.0.0.28

ETC Control

Zmudzinski

224.0.0.101

Cisco-hnap

Bakke

224.0.0.102

HSRP

Wilson

224.0.0.103

MDAP

Deleu

224.0.0.251

mDNS

Cheshire

224.0.1.0

VMTP Managers Group

RFC1045/DRC3

224.0.1.1

NTP Network TimeProtocol

RFC1119/DLM1

224.0.1.2

SGI-Dogfight

AXC

224.0.1.3

Rwhod

SXD

224.0.1.4

VNP

DRC3

224.0.1.5

Artificial Horizons-Aviator

BXF

224.0.1.6

NSS-Name Service Server

BXS2

224.0.1.7

AUDIONEWS-Audio News Multicast

MXF2

224.0.1.8

SUN NIS+ Information Service

CXM3

224.0.1.9

MTP Multicast Transport Protocol

SXA

224.0.1.10

IETF-1-LOW-AUDIO

SC3

224.0.1.11

IETF-1-AUDIO

SC3

224.0.1.12

IETF-1-VIDEO

SC3

224.0.1.13

IETF-2-LOW-AUDIO

SC3

224.0.1.14

IETF-2-AUDIO

SC3

224.0.1.15

IETF-2-VIDEO

SC3

224.0.1.16

MUSIC-SERVICE

Guido Van Rossum

224.0.1.17

SEANET-TELEMETRY

Andrew Maffei

224.0.1.18

SEANET-IMAGE

Andrew Maffei

224.0.1.19

MLOADD

Braden

224.0.1.20

Any private experiment

JBP

224.0.1.21

DVMRP on MOSPF

John Moy

224.0.1.22

SVRLOC

Veizades

224.0.1.23

XINGTV

Gordon

224.0.1.24

Microsoft-DS

arnoldm@microsoft.com

224.0.1.25

NBC-PRO

bloomer@birch.crd.ge.com

224.0.1.26

NBC-PFN

bloomer@birch.crd.ge.com

224.0.1.31

Ampr-info

Janssen

224.0.1.32

Mtrace

Casner

224.0.1.33

RSVP-encap-1

Braden

224.0.1.34

RSVP-encap-2

Braden

224.0.1.35

SVRLOC-DA

Veizades

224.0.1.36

RLN-server

Kean

224.0.1.37

Proshare-mc

Lewis

224.0.1.38

Dantz

Yackle

224.0.1.39

Cisco-rp-announce

Farinacci

224.0.1.40

Cisco-rp-discovery

Farinacci

224.0.1.41

Gatekeeper

Toga

224.0.1.42

Iberiagames

Marocho

224.0.1.43

NWN-Discovery

Zwemmer

224.0.1.44

NWN-Adaptor

Zwemmer

224.0.1.45

ISMA-1

Dunne

224.0.1.46

ISMA-2

Dunne

224.0.1.47

Telerate

Peng

224.0.1.48

Ciena

Rodbell

224.0.1.49

DCAP-servers

RFC2114

224.0.1.50

DCAP-clients

RFC2114

224.0.1.51

MCNTP-directory

Rupp

224.0.1.52

MBONE-VCR-directory

Holfelder

224.0.1.53

Heartbeat

Mamakos

224.0.1.54

Sun-mc-grp

DeMoney

224.0.1.55

Extended-sys

Poole

224.0.1.56

Pdrncs

Wissenbach

224.0.1.57

TNS-adv-multi

Albin

224.0.1.58

Vcals-dmu

Shindoh

224.0.1.59

Zuba

Jackson

224.0.1.60

Hp-device-disc

Albright

224.0.1.61

TMS-production

Gilani

224.0.1.62

Sunscalar

Gibson

224.0.1.63

MMTP-poll

Costales

224.0.1.64

Compaq-peer

Volpe

224.0.1.65

IAPP

Meier

224.0.1.66

Multihasc-com

Brockbank

224.0.1.67

Serv-Discovery

Honton

224.0.1.68

Mdhcpdisover

RFC2730

224.0.1.69

MMP-bundle-Discovery1

Malkin

224.0.1.70

MMP-bundle-Discovery2

Malkin

224.0.1.71

XYPOINT DGPS Data Feed

Green

224.0.1.72

GilatSkySurfer

Gal

224.0.1.73

SharesLive

Rowatt

224.0.1.74

NorthernData

Sheers

224.0.1.75

SIP

Schulzrinne

224.0.1.76

IAPP

Moelard

224.0.1.77

AGENTVIEW

Iyer

224.0.1.78

Tibco Multicast1

Shum

224.0.1.79

Tibco Multicast2

Shum

224.0.1.80

MSP

Caves

224.0.1.81

OTT (One-way Trip Time)

Schwartz

224.0.1.82

TRACKTICKER

Novick

224.0.1.83

DTN-mc

Gaddie

224.0.1.84

Jini-announcement

Scheifler

224.0.1.85

Jini-request

Scheifler

224.0.1.86

SDE-Discovery

Aronson

224.0.1.87

DirecPC-SI

Dillon

224.0.1.88

B1Rmonitor

Purkiss

224.0.1.89

3Com-AMP3 dRMON

Banthia

224.0.1.90

ImFtmSvc

Bhatti

224.0.1.91

NQDS4

Flynn

224.0.1.92

NQDS5

Flynn

224.0.1.93

NQDS6

Flynn

224.0.1.94

NLVL12

Flynn

224.0.1.95

NTDS1

Flynn

224.0.1.96

NTDS2

Flynn

224.0.1.97

NODSA

Flynn

224.0.1.98

NODSB

Flynn

224.0.1.99

NODSC

Flynn

224.0.1.100

NODSD

Flynn

224.0.1.101

NQDS4R

Flynn

224.0.1.102

NQDS5R

Flynn

224.0.1.103

NQDS6R

Flynn

224.0.1.104

NLVL12R

Flynn

224.0.1.105

NTDS1R

Flynn

224.0.1.106

NTDS2R

Flynn

224.0.1.107

NODSAR

Flynn

224.0.1.108

NODSBR

Flynn

224.0.1.109

NODSCR

Flynn

224.0.1.110

NODSDR

Flynn

224.0.1.111

MRM

Wei

224.0.1.112

TVE-FILE

Blackketter

224.0.1.113

TVE-ANNOUNCE

Blackketter

224.0.1.114

Mac Srv Loc

Woodcock

224.0.1.115

Simple Multicast

Crowcroft

224.0.1.116

SpectraLinkGW

Hamilton

224.0.1.117

Dieboldmcast

Marsh

224.0.1.118

Tivoli Systems

Gabriel

224.0.1.119

PQ-Lic-mcast

Sledge

224.0.1.120

HYPERFEED

Kreutzjans

224.0.1.121

Pipesplatform

Dissett

224.0.1.122

LiebDevMgmg-DM

Velten

224.0.1.123

TRIBALVOICE

Thompson

224.0.1.124

UDLR-DTCP

Cipiere

224.0.1.125

PolyCom Relay1

Coutiere

224.0.1.126

Infront Multi1

Lindeman

224.0.1.127

XRX DEVICE DISC

Wang

224.0.1.128

CNN

Lynch

224.0.1.129

PTP-primary

Eidson

224.0.1.130

PTP-alternate1

Eidson

224.0.1.131

PTP-alternate2

Eidson

224.0.1.132

PTP-alternate3

Eidson

224.0.1.133

ProCast

Revzen

224.0.1.134

3Com Discp

White

224.0.1.135

CS-Multicasting

Stanev

224.0.1.136

TS-MC-1

Sveistrup

224.0.1.137

Make Source

Daga

224.0.1.138

Teleborsa

Strazzera

224.0.1.139

SUMAConfig

Wallach

224.0.1.140

Unassigned

 

224.0.1.141

DHCP-SERVERS

Hall

224.0.1.142

CN Router-LL

Armitage

224.0.1.143

EMWIN

Querubin

224.0.1.144

Alchemy Cluster

O'Rourke

224.0.1.145

Satcast One

Nevell

224.0.1.146

Satcast Two

Nevell

224.0.1.147

Satcast Three

Nevell

224.0.1.148

Intline

Sliwinski

224.0.1.149

8x8 Multicast

Roper

224.0.1.150

Unassigned

JBP

224.0.1.166

Marratech-cc

Parnes

224.0.1.167

EMS-InterDev

Lyda

224.0.1.168

Itb301

Rueskamp

224.0.2.1

'RWHO' Group (BSD) (unofficial)

JBP

224.0.2.2

SUN RPC PMAPPROC_CALLIT

BXE1

224.2.127.254

SAPv1 Announcements

SC3

224.2.127.255

SAPv0 Announcements

SC3

Table B.2: Multicast Group Assignments for Class D IP Addresses

Multicast Address

Group Assigned

Contact

224.0.0.0-224.0.0.255

Routing Protocols

 

224.0.1.27-224.0.1.30

Lmsc-Calren-1 to 4

Uang

224.0.1.151-224.0.1.165

Intline 1 to 15

Sliwinski

224.0.1.169-224.0.1.255

Unassigned

JBP

224.0.2.064-224.0.2.095

SIAC MDD Service

Tse

224.0.2.096-224.0.2.127

CoolCast

Ballister

224.0.2.128-224.0.2.191

WOZ-Garage

Marquardt

224.0.2.192-224.0.2.255

SIAC MDD Market Service

Lamberg

224.0.3.000-224.0.3.255

RFE Generic Service

DXS3

224.0.4.000-224.0.4.255

RFE IndividualConferences

DXS3

224.0.5.000-224.0.5.127

CDPD Groups

BobBrenner

224.0.5.128-224.0.5.191

SIAC Market Service

Cho

224.0.5.192-224.0.5.255

Unassigned

IANA

224.0.6.000-224.0.6.127

Cornell ISIS Project

Tim Clark

224.0.6.128-224.0.6.255

Unassigned

IANA

224.0.7.000-224.0.7.255

Where-Are-You

Simpson

224.0.8.000-224.0.8.255

INTV

Tynan

224.0.9.000-224.0.9.255

Invisible Worlds

Malamud

224.0.10.000-224.0.10.255

DLSw Groups

Lee

224.0.11.000-224.0.11.255

NCC.NET Audio

Rubin

224.0.12.000-224.0.12.063

Microsoft and MSNBC

Blank

224.0.13.000-224.0.13.255

UUNET PIPEX Net News

Barber

224.0.14.000-224.0.14.255

NLANR

Wessels

224.0.15.000-224.0.15.255

Hewlett Packard

Van Der Meulen

224.0.16.000-224.0.16.255

XingNet

Uusitalo

224.0.17.000-224.0.17.031

Mercantile &Commodity Exchange

Gilani

224.0.17.032-224.0.17.063

NDQMD1

Nelson

224.0.17.064-224.0.17.127

ODN-DTV

Hodges

224.0.18.000-224.0.18.255

Dow Jones

Peng

224.0.19.000-224.0.19.063

Walt Disney Company

Watson

224.0.19.064-224.0.19.095

Cal Multicast

Moran

224.0.19.096-224.0.19.127

SIAC Market Service

Roy

224.0.19.128-224.0.19.191

IIG Multicast

Carr

224.0.19.192-224.0.19.207

Metropol

Crawford

224.0.19.208-224.0.19.239

Xenoscience, Inc.

Timm

224.0.19.240-224.0.19.255

HYPERFEED

Felix

224.0.20.000-224.0.20.063

MS-IP/TV

Wong

224.0.20.064-224.0.20.127

Reliable Network Solutions

Vogels

224.0.20.128-224.0.20.143

TRACKTICKER Group

Novick

224.0.20.144-224.0.20.207

CNR Rebroadcast MCA

Sautter

224.0.21.000-224.0.21.127

Talarian MCAST

Mendal

224.0.22.000-224.0.22.255

WORLD MCAST

Stewart

224.0.252.000-224.0.252.255

Unassigned

Returned 29- Apr-03

224.0.253.000-224.0.253.255

Unassigned

Returned 29- Apr-03

224.0.254.000-224.0.254.255

Unassigned

Returned 29- Apr-03

224.0.255.000-224.0.255.255

Unassigned

Returned 29- Apr-03

224.1.0.0-224.1.255.255

ST Multicast Groups

RFC1190/KS14

224.2.0.0-224.2.127.253

Multimedia Conference Calls

SC3

224.2.128.0-224.2.255.255

SAP Dynamic Assignments

SC3

224.252.0.0-224.255.255.255

DIS transient groups

IANA

225.0.0.0-225.255.255.255

Reserved

IANA

232.0.0.0-232.255.255.255

Source-Specific Multicast

DRC3

233.0.0.0-233.255.255.255

GLOP Block

RFC3180

239.000.000.000-239.255.255.255

Administratively Scoped

IANA/RFC2365

239.000.000.000-239.063.255.255

Reserved

IANA

239.064.000.000-239.127.255.255

Reserved

IANA

239.128.000.000-239.191.255.255

Reserved

IANA

239.192.000.000-239.251.255.255

Organization-Local Scope

Meyer/RFC2365

239.252.000.000-239.252.255.255

Site-Local Scope

Meyer/RFC2365

239.253.000.000-239.253.255.255

Site-Local Scope

Meyer/RFC2365

239.254.000.000-239.254.255.255

Site-Local Scope

Meyer/RFC2365

239.255.000.000-239.255.255.255

Site-Local Scope

Meyer/RFC2365

Table B.3: Multicast RFCs

Reference RFC

RFC Title

RFC1045

VMTP: Versatile Message Transaction ProtocolSpecification

RFC1075

Distance Vector Multicast Routing Protocol

RFC1112

Host Extensions for IP Multicasting

RFC1119

Network Time Protocol (Version 1), Specification and Implementation

RFC1190

Experimental Internet Stream Protocol, Version 2 (ST-II)

RFC1723

RIP Version 2: Carrying Additional Information

RFC1884

IP Version 6 Addressing Architecture

RFC2114

Data Link Switching Client Access Protocol

RFC2328

OSPF Version 2

RFC2365

Administratively Scoped IP Multicast

RFC2730

Multicast Address Dynamic Client Allocation Protocol (MADCAP)

Related

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