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Chapter 1
Cutting the Network Cable
In This Chapter
Hitting the ground running
Joining wireless networks your way
Collecting the wireless puzzle pieces
Judging wireless pros and cons
Knowing the limits
Touring home and office networks
Thinking globally
O
ver the last century the world has wrapped itself in wires and cables:
telegraph cables, telephone cables, power cables, network cables.
Consider what lies behind the typical office desk. If you were to take a time-
lapse movie camera and travel back about a hundred years, you might see
something like the following: At first there’d be a lone wire for a desk lamp, pos-
sibly accompanied by a second wire in the form of a telephone cord. After a
while, an office intercom cable would appear, along with its associated power
cord, followed shortly by another power cord or two for an electric typewriter
and an adding machine. A multi-plug electrical outlet extender would also enter
the picture at around the same time, from which would sprout the growing
number of power cords that by this time have overwhelmed the existing wall
socket. Snaking into the picture with increasing speed as you got closer and
closer to the present, a whole bunch of other cables and cords would arrive to
feed both electricity and information into an expanding desktop computer
system. The last frame of this movie would show a hopelessly tangled Gordian
knot of dust-encrusted cables and cords, looking very much like the one
behind my desk, and perhaps behind yours, too.
If you would like to become a twenty-first century Alexander the Great and
take a big whack at that tangled wire-and-dust knot, this chapter introduces
you to your sword: Apple’s AirPort wireless network technology. Get ready to
start swinging.
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Résumé du contenu

Page 1 - Cutting the Network Cable

Chapter 1Cutting the Network CableIn This Chapter䊳 Hitting the ground running䊳 Joining wireless networks your way䊳 Collecting the wireless puzzle piec

Page 2 - Arriving at the AirPort

⻬ – button: Click this button to remove selected networks from the list.You may want to use this button to remove networks that your Mac hasadded to t

Page 3

The If No Preferred Networks Are Found pop-up menu at the top of theOptions sheet controls how your Mac behaves when your Mac has notalready joined a

Page 4 - Making a first connection

⻬ Disconnect from Wireless Networks When I Log Out: By default, afteryour Mac joins a wireless network, the Mac remains connected evenwhen you log out

Page 5

Apple has made two different sorts of AirPort cards since it introducedAirPort networking in 1999: the original AirPort card, and the newerAirPort Ext

Page 6

You won’t need all of the items in the preceding list to set up a simple wire-less network. If you don’t need to share Internet access, you only need

Page 7 - AirPort networks

To complement this list, these network devices often use wireless connections:⻬ Portable Macs: The first Macs to have wireless capability were the fir

Page 8

You usually get an Internet connection in one of two ways:⻬ From an Internet Service Provider (ISP): ISPs provide most homeInternet connections. Commo

Page 9

wired to wireless networking, you may experience a gain — in many cases, aconsiderable gain — but chances are that gain comes with at least a littleac

Page 10 - Part I: Wireless Basics

⻬ Control and predictability: You can see a wired network — just followthe cables — and if one wired network client seems to have a bad con-nection, i

Page 11

Here’s a short list of possible stumbling blocks you may encounter:⻬ Crowded wireless network environment: In some locations, such asapartment buildin

Page 12 - Assembling a Wireless Network

10Part I: Wireless Basics Arriving at the AirPortYou just took delivery of your shiny new iBook with its highly touted built-inwireless capability, an

Page 13

Checking out a typical home AirPort networkYou can count on your fingers the number of computers that a typical homenetwork connects: Such networks ha

Page 14 - Plugging in

Looking at a typical office networkBusinesses, like networks, can come in all shapes and sizes. A network for asmall business, such as a retail store

Page 15

This doesn’t mean you won’t be able to set up or use a wireless network atthe office. Many enterprises have noted that wireless networks, sometimesref

Page 16 - Deciding to Go Wireless

3. Click Turn AirPort On.If you compare Figure 1-2 to Figure 1-1, you might not notice the changesin the Internet Connect window, but they are signifi

Page 17

12Part I: Wireless Basics Now that you have turned on AirPort, you can try connecting to a nearbyAirPort network, as described in the next section, “M

Page 18 - Avoiding show-stoppers

When you join an AirPort network, your Mac can use that network’s Internetconnection if it has one. As you see in Chapter 4, most AirPort networks pro

Page 19

14Part I: Wireless Basics 4. Type the network password in the Password field and click OK.You can skip this step if the network you have selected does

Page 20 - AirPort network

You may be wondering about the Disconnect button in the lower-right cornerof the Internet Connect window, shown in Figure 1-5. This button appearswhen

Page 21

To get to the AirPort settings of your Mac’s Network preferences, follow thesesteps:1. Open System Preferences.You can click the System Preferences ic

Page 22 - Contemplating the big picture

joined wireless network in range, but does detect a nearby open net-work, your Mac presents a dialog asking you if you wish to join that net-work. Unl

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