Common Permanent Multicast Addresses
188.8.131.52 The reserved base address. This is never assigned to any multicast group.
184.108.40.206 All systems on the local subnet.
220.127.116.11 All routers on the local subnet.
18.104.22.168 All Distance Vector Multicast Routing Protocol (DVMRP) routers on this subnet. An early version of the DVMRP protocol is documented in RFC 1075; the current version has changed substantially.
22.214.171.124 Mobile agents on the local subnet.
126.96.36.199 This multicast group allows a client to locate a Dynamic Host Configuration Protocol (DHCP) server or relay agent on the local subnet.
188.8.131.52 All Protocol Independent Multicasting (PIM) routers on this subnet.
184.108.40.206 RSVP encapsulation on this subnet. RSVP stands for Resource reSerVation setup Protocol, an effort to allow people to reserve a guaranteed amount of Internet bandwidth in advance for an event.
220.127.116.11 The Network Time Protocol.
18.104.22.168 Silicon Graphics Dogfight game.
22.214.171.124 The Name Service Server.
126.96.36.199 Audio news multicast.
188.8.131.52 Sun's NIS+ Information Service.
184.108.40.206 The Multicast Transport Protocol.
220.127.116.11 Channel 1 of low-quality audio from IETF meetings.
18.104.22.168 Channel 1 of high-quality audio from IETF meetings.
22.214.171.124 Channel 1 of video from IETF meetings.
126.96.36.199 Channel 2 of low-quality audio from IETF meetings.
188.8.131.52 Channel 2 of high-quality audio from IETF meetings.
184.108.40.206 Channel 2 of video from IETF meetings.
220.127.116.11 Music service.
18.104.22.168 Telemetry data for the U.S. Navy's SeaNet Project to extend the Internet to vessels at sea. See http://web.nps.navy.mil/.
22.214.171.124 SeaNet images.
126.96.36.199 MLOADD measures the traffic load through one or more network interfaces over a number of seconds. Multicasting is used to communicate between the different interfaces being measured.
188.8.131.52 Experiments that do not go beyond the local subnet.
184.108.40.206 XING Technology's Streamworks TV multicast.
220.127.116.11 Used by Windows Internet Name Service (WINS) servers to locate one another.
18.104.22.168 A multicast version of traceroute.
22.214.171.124-126.96.36.199 The Multicast Backbone on the Internet (MBONE) addresses are reserved for multimedia conference calls, i.e., audio, video, whiteboard, and shared web browsing between many people.
188.8.131.52 Port 9,875 on this address is used to broadcast the currently available MBONE programming. You can look at this with the X Window utility sdr or the Windows/Unix multikit program.
184.108.40.206-220.127.116.11 Administrative scope, in contrast to TTL scope, uses different ranges of multicast addresses to constrain multicast traffic to a particular region or group of routers. For example, the IP addresses from 239.178.0 to 239.178.255 might be an administrative scope for the state of New York. Data addressed to one of those addresses would not be forwarded outside of New York. The idea is to allow the possible group membership to be established in advance without relying on lessthan- reliable TTL values. The exact divisions of this range into particular scopes remains to be defined.