DES-3326S Layer 3 Fast Ethernet Switch User’s Guide

Internet Assigned Numbers Authority (IANA) for special purposes. For example, the block of multicast addresses ranging from 224.0.0.1 to 224.0.0.225 is reserved for use by routing protocols and some other low-level topology discovery and maintenance protocols.

Figure 5-14. Class D Multicast Address

Some of the reserved IP multicast addresses are as follows:

Address

Assignment

224.0.0.0Base Address (reserved)

224.0.0.1All Systems on this subnet

224.0.0.2All Routers on this subnet

224.0.0.3Unassigned

224.0.0.4DVMRP Routers

224.0.0.5OSPF IGP Routers

224.0.0.6OSPF IGP Designated Routers

224.0.0.7ST Routers

224.0.0.8ST Hosts

224.0.0.9All RIP2 Routers

224.0.0.10All IGRP Routers

Switch Management and Operating Concepts

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