Java Reference
In-Depth Information
Domain name
IP address Purpose
224.0.0.112
Multipath Management Agent Device Discovery
224.0.0.113
Qualcomm's AllJoyn
224.0.0.114
Inter RFID Reader Protocol
224.0.0.251
Multicast DNS
self assigns and resolves host names for multicast
addresses.
224.0.0.252
Link-local Multicast Name Resolution
,
a precursor of mDNS, allows
nodes ot self-assign domain names strictly for the local network, and
to resolve such domain names on the local network.
224.0.0.253
Teredo
is used to tunnel IPv6 over IPv4. Other Teredo clients on the
same IPv4 subnet respond to this multicast address.
224.0.0.254
Reserved for experimentation.
Permanently assigned multicast addresses that extend beyond the local subnet begin
with 224.1. or 224.2.
Table 13-2
lists a few of these permanent addresses. A few blocks
of addresses ranging in size from a few dozen to a few thousand addresses have also
been reserved for particular purposes. The complete list is available from
iana.org
,
though you should note that it contains many now defunct services, protocols, and
companies. The remaining 248 million multicast addresses can be used on a temporary
basis by anyone who needs them. Multicast routers (
mrouters
for short) are responsible
for making sure that two different systems don't try to use the same address at the same
time.
Table 13-2. Common permanent multicast addresses
Domain name IP address Purpose
NTP.MCAST.NET 224.0.1.1
The Network Time Protocol.
NSS.MCAST.NET 224.0.1.6
The Name Service Server.
AUDIONEWS.MCAST.NET 224.0.1.7
Audio news multicast.
MTP.MCAST.NET 224.0.1.9
The Multicast Transport Protocol.
IETF-1-LOW-AUDIO.MCAST.NET 224.0.1.10
Channel 1 of low-quality audio from IETF meetings.
IETF-1-AUDIO.MCAST.NET 224.0.1.11
Channel 1 of high-quality audio from IETF meetings.
IETF-1-VIDEO.MCAST.NET 224.0.1.12
Channel 1 of video from IETF meetings.
IETF-2-LOW-AUDIO.MCAST.NET 224.0.1.13
Channel 2 of low-quality audio from IETF meetings.
IETF-2-AUDIO.MCAST.NET 224.0.1.14
Channel 2 of high-quality audio from IETF meetings.
IETF-2-VIDEO.MCAST.NET 224.0.1.15
Channel 2 of video from IETF meetings.
MLOADD.MCAST.NET 224.0.1.19
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.
EXPERIMENT.MCAST.NET 224.0.1.20
Experiments.
224.0.23.178
JDP Java Discovery Protocol, used to find manageable JVMs on
the network.
