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Chapter 5: Networking Your Computer
46
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. For
information on setting up a router, see the router’s documentation.
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.
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.
Tip
To add the ability to access a wireless Ethernet network to your wired
Ethernet network, connect an access point to the router or use a router that
has a built-in access point.