Fundamentals; The Address Book; Overview - D-Link NetDefendOS User Manual

Chapter 3: Fundamentals
This chapter describes the fundamental logical objects which make up a NetDefendOS
configuration. These objects include such items as IP addresses and IP rules. Some exist by
default and some must be defined by the administrator.
In addition, the chapter explains the different interface types and explains how security policies
are constructed by the administrator.
• The Address Book, page 145
• IPv6 Support, page 156
• Services, page 165
• Interfaces, page 178
• ARP, page 221
• IP Rules and IP Policies, page 228
• Application Control, page 253
• Schedules, page 265
• Certificates, page 268
• DNS, page 281

3.1. The Address Book

3.1.1. Overview

The NetDefendOS Address Book contains named objects representing various types of IP
addresses, including single IP addresses, networks as well as ranges of IP addresses. Ethernet
MAC addresses can also be defined in the address book.
Using address book objects has a number of important benefits:
• It increases understanding of the configuration by using meaningful symbolic names.
• Using address object names instead of entering numerical addresses reduces errors.
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