Information Security for Managers

Networks and Addressing

CHAPTER 11

GENERALLY SPEAKING, PEOPLE THINK ABOUT networking in terms of either the connection from one system to another or the service they use to communicate, such as email or browsing the Web. They tend not to think about the underlying protocols such as X.400 or SMTP used for email, or the simple network management protocol (SNMP) used in managing networks, or the types of network protocols used in the connectivity such as asynchronous transfer mode (ATM), switched multimegabit data service (SMDS), or Frame Relay. In this chapter, we will cover networking basics, emphasizing the TCP/IP (Version 4, or IPv4, and Version 6, or IPv6) family of networks, and we will discuss network addressing and architecture. In ...