Networking Explained, Second Edition
An in-depth explanation of all things networking.
TABLE OF CONTENTS Networking Explained, Second Edition
Chapter 15: Dialup and Home Networking
Overview
In this chapter we discuss the concepts and methods of extending networking to the home or small office/home office (SOHO) environment. This discussion involves dialup networking, which entails using the telephone system to dial into a network, dedicated, "always on" connections via DSL or cable services, and home-based LANs. An outline of the major topics we address follows:
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Dialup Networking Concepts and Issues (Questions 1 3)
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Modem Concepts: Analog and 56K Modems (Questions 4 14)
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xDSL Connections (Questions 15 17)
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Cable Modem Connections (Questions 18 23)
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Home-Based Internet Connections (Questions 24 27)
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Home-Based LANs: Concepts and Issues (Questions 28 34)
Dialup Networking Concepts and Issues
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What is dialup networking?
Dialup networking refers to a network connection that is established by "dialing" into the network through the public telephone system. Dialup connections can be analog or digital. Analog connections involve the use of a modem; digital connections require end-to-end digital connectivity. (See Chapter 11 on ISDN for more information about end-to-end digital connections.) Dialup connections generally can be classified as either terminal-based or network-based.
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What's the difference between a terminal- and network-based connection?
A terminal dialup connection involves the use of special terminal emulation software, which makes the local system a terminal of the remote machine. This type of connection is sometimes called a tty connection, which is an acronym for teletype, a term used in the early days of computing to denote a terminal connection between a device and a centralized host. In a tty dialup connection, terminal emulation software is...
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