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Chapter 5: Networking Your Computer
Introduction to Networking
An Ethernet network consists of two or more computers connected together through an
Ethernet cable. This connection type is commonly used in offices around the world and
can be used to build computer networks in the home.
Ethernet, Fast Ethernet, or Gigabit Ethernet
Ethernet is available at three different speeds. Standard Ethernet runs at 10 Mbps, Fast
Ethernet runs at 100 Mbps, and Gigabit Ethernet runs at 1000 Mbps. Most home networks
are built using Standard or Fast Ethernet components. Business networks are typically built
using Fast or Gigabit Ethernet components.
To create an Ethernet network, you or your electrician must install special Ethernet cables
in your home or office.
Using a router
The most common way to set up an Ethernet network is Dynamic Host Control Protocol
(DHCP) using a router. A DHCP network configuration uses a router to automatically assign
IP addresses to each computer or network device.
Example router-based Ethernet network
The following is an example of an Ethernet network. The network is made up of a router,
a cable or DSL modem, your computers, and cables connecting each of these components.
The router is the central control point for the network. Attached to the router are all of
your computers or Ethernet-ready devices. Also connected to the router is a cable or DSL
modem that provides access to the Internet.
Important Check local code requirements before installing Ethernet cable or
other wiring in your home or office. Your municipality may require you
to obtain a permit and hire a licensed installer.