H3C S5100-SI

1-7
Table 1-2 Range and description of Class D IP addresses
Class D address range Description
224.0.0.0 to 224.0.0.255
Reserved multicast addresses (IP addresses for
permanent multicast groups). The IP address 224.0.0.0
is reserved. Other IP addresses can be used by routing
protocols.
224.0.1.0 to 231.255.255.255
233.0.0.0 to 238.255.255.255
Available any-source multicast (ASM) multicast
addresses (IP addresses for temporary groups). They
are valid for the entire network.
232.0.0.0 to 232.255.255.255
Available source-specific multicast (SSM) multicast
group addresses.
239.0.0.0 to 239.255.255.255
Administratively scoped multicast addresses, which are
for specific local use only.
As specified by IANA, the IP addresses ranging from 224.0.0.0 to 224.0.0.255 are reserved for network
protocols on local networks. The following table lists commonly used reserved IP multicast addresses:
Table 1-3 Reserved IP multicast addresses
Class D address range Description
224.0.0.1 Address of all hosts
224.0.0.2 Address of all multicast routers
224.0.0.3 Unassigned
224.0.0.4 Distance vector multicast routing protocol (DVMRP) routers
224.0.0.5 Open shortest path first (OSPF) routers
224.0.0.6 Open shortest path first designated routers (OSPF DR)
224.0.0.7 Shared tree routers
224.0.0.8 Shared tree hosts
224.0.0.9 RIP-2 routers
224.0.0.11 Mobile agents
224.0.0.12 DHCP server/relay agent
224.0.0.13 All protocol independent multicast (PIM) routers
224.0.0.14 Resource reservation protocol (RSVP) encapsulation
224.0.0.15 All core-based tree (CBT) routers
224.0.0.16 The specified subnetwork bandwidth management (SBM)
224.0.0.17 All SBMS
224.0.0.18 Virtual router redundancy protocol (VRRP)
224.0.0.19 to
224.0.0.255
Other protocols