CHAPTER        11


This chapter introduces Internet technology, which connects every computer network to every other one at some level. To understand this, we cover the following topics:

•  Network topology

•  Basic Internet structure and routing

•  Internet host addressing

•  Network inspection tools

11.1 Building Information Networks

Some people believe the global telegraph network was the first Internet, but the telephone network was the first to reach into most homes and workplaces. Unlike the telegraph, the telephone became part of the social and cultural fabric of modern life in the mid-20th century, much like the Internet has become today.

Because of this, classic elements of telephone technology ...

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