Nortel DMS-100 User Manual page 151

Table 36
IP address classes
Class Range
C 192 to 223
Two additional address classes exist. Class D addresses support IP
multicasting, which is used to transmit packets to multiple IP addresses. Class
E addresses are reserved for Internet engineering task force experimental use.
Network address 127 is not a valid network number. It is used for testing
purposes only.
The EIU supports Ethernet connectivity to class A, B or C networks.
The following diagrams show addressing and subnet mask examples of
Network classes.
Appendix E: Understanding IP and IP addressing 151
Description
This is used for smaller networks having fewer than
255 nodes, such as smaller colleges and businesses
(for example, 195.10.107.0).
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