Multicast Addresses; Ip Multicast Addresses - Hirschmann MACH 4000 User Manual

Multicast Routing

9.1 Multicast Addresses

9.1.1 IP Multicast Addresses

The IANA (Internet Assigned Numbers Authority) defines the IP addresses of
the class D IP address space as Multicast addresses. IP Multicast addresses
are in the range from 224.0.0.0 to 239.255.255.255.
IP address range
224.0.0.0
224.0.0.1 - 224.0.0.255
224.0.1.0 - 224.0.1.255
224.0.2.0 - 224.0.255.255
224.1.0.0 - 238.255.255.255 Various organizations, protocols, applications, reservations.
239.0.0.0 - 239.255.255.255 Administratively scoped IP v4 Multicast space
Table 10: Assignment of the IP Multicast address range
Routing L3P
Release 4.0 11/07
Assignment
Base address, reserved
Local Network Control Block, reserved for routing protocols,
IGMP, etc. For example:
224.0.0.1 - all hosts of a subnetwork
224.0.0.2 - all routers of a subnetwork
224.0.0.4 - all DVMRP routers
224.0.0.5 - all OSPF routers
224.0.0.6 - all OSPF DR routers
224.0.0.9 - all RIP v2 routers
224.0.0.13 - all PIM routers
224.0.0.18 - all VRRP routers
224.0.0.22 - all IGMP v3 reports
Internetwork Control Block
AD HOC Block
For example:
232.0.0.0-232.255.255.255 - Source-specific Multicasts
These Multicast addresses are not transferred by any router
beyond the local boundaries and into the Internet. Therefore the
administrator can assign these addresses any way he wants
within these local boundaries.
9.1 Multicast Addresses
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