Common Permanent Multicast Addresses
18.104.22.168 The reserved base address. This is never assigned to any multicast group.
22.214.171.124 All systems on the local subnet.
126.96.36.199 All routers on the local subnet.
188.8.131.52 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.
184.108.40.206 Mobile agents on the local subnet.
220.127.116.11 This multicast group allows a client to locate a Dynamic Host Configuration Protocol (DHCP) server or relay agent on the local subnet.
18.104.22.168 All Protocol Independent Multicasting (PIM) routers on this subnet.
22.214.171.124 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.
126.96.36.199 The Network Time Protocol.
188.8.131.52 Silicon Graphics Dogfight game.
184.108.40.206 The Name Service Server.
220.127.116.11 Audio news multicast.
18.104.22.168 Sun's NIS+ Information Service.
22.214.171.124 The Multicast Transport Protocol.
126.96.36.199 Channel 1 of low-quality audio from IETF meetings.
188.8.131.52 Channel 1 of high-quality audio from IETF meetings.
184.108.40.206 Channel 1 of video from IETF meetings.
220.127.116.11 Channel 2 of low-quality audio from IETF meetings.
18.104.22.168 Channel 2 of high-quality audio from IETF meetings.
22.214.171.124 Channel 2 of video from IETF meetings.
126.96.36.199 Music service.
188.8.131.52 Telemetry data for the U.S. Navy's SeaNet Project to extend the Internet to vessels at sea. See http://web.nps.navy.mil/.
184.108.40.206 SeaNet images.
220.127.116.11 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.
18.104.22.168 Experiments that do not go beyond the local subnet.
22.214.171.124 XING Technology's Streamworks TV multicast.
126.96.36.199 Used by Windows Internet Name Service (WINS) servers to locate one another.
188.8.131.52 A multicast version of traceroute.
184.108.40.206-220.127.116.11 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.
18.104.22.168 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.
22.214.171.124-126.96.36.199 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.