If all goes well, instead of “Huh?” your response by the end of this chapter will be “Duh!” These are times when I would want to bridge two or more networks: ✦ You’re adding a wireless n
Trang 1Chapter 3: Creating Bridges
In This Chapter
✓ Bridging two or more networks
✓ Building the bridge with hardware
✓ Doing what you wish with a bridge
No, this isn’t a chapter on civil engineering And I’m not going to tell
you how to build a bridge on the River Kwai, although I may in an upcoming sequel (Naturally, I’ll be playing William Holden’s part after I shed a few pounds.) Instead, this chapter is about bridging two or more networks
Huh? A bridge is software or hardware that connects two or more different networks together
Huh is exactly what I said when I first learned about creating a bridge between, say, a wired Ethernet network and a wireless network What is it? Why do I need it? Is the Big Bang overrated?
If all goes well, instead of “Huh?” your response by the end of this chapter will be “Duh!” These are times when I would want to bridge two or more networks:
✦ You’re adding a wireless network and want it to piggyback on an ing wired Ethernet network The wireless network has access to the same things — hardware and data — as the wired network does
in business environments, but it could occur in a home, too The wired networks are physically separated and the most convenient way to con-nect them is by creating a bridge
✦ You want to extend the range of a wireless network By bridging two wireless access points, you can expand the signal range without laying any wires
You can use a wireless access point as a bridge, if the access point’s ware is equipped to handle the task Not all wireless access points can be used as a bridge; it must specifically say it can be used as one
Trang 2hard-160 Bridging with Windows Vista
Bridging with Windows Vista
Windows Vista makes it easy to create a bridge between two or more works connected to the same computer
net-You need a network adapter, which serves as a communications point between your computer and the network, for each network you want to bridge If you’re bridging a wired network with a wireless network, your com-puter needs two adapter cards: one for the wired network and one for the wireless network
Creating a bridge
Use the following steps to bridge two networks in Windows Vista:
1 Click Start.
The Start menu appears
2 Click Network and Sharing Center; click Manage network connections from the Tasks list.
The Network Connections dialog box appears, as shown in Figure 3-1
Be sure not to click Network from the Start menu; it opens the Network page (I know, it gets confusing!)
3 Select the networks you want to bridge.
The networks you select are highlighted You can select multiple nections by holding down the Ctrl key as you click each network
con-Figure 3-1:
Network
Connections
dialog box
Trang 3Book III Chapter 3
Bridging with Windows Vista
4 Right-click one of the highlighted networks and select Bridge
Connections, as shown in Figure 3-2.
Trang 4162 Bridging with Windows Vista
Adding a network to a bridge
You can easily add a network to an existing network bridge Just follow these steps:
1 Click Start.
The Start menu appears
2 Click Network and Sharing Center; click Manage network connections from the Tasks list.
The Network Connections dialog box appears
3 Right-click the network you want to add to the bridge and select Add
to Bridge.
Windows Vista adds the network to the bridge The Status column in the Network Connections column shows Bridged once the network has been added to the bridge, and it also appears in the Network Bridge section of the page
Removing a network from a bridge
Maybe you’ve added a bridge by mistake, or maybe you’re ready to burn a bridge or two Follow these steps to get rid of a network from a bridge:
1 Click Start.
The Start menu appears
Trang 5Book III Chapter 3
Bridging with Windows Vista
2 Click Network and Sharing Center; click Manage network connections
from the Tasks list.
The Network Connections dialog box appears
3 Right-click the network you want to remove from the network and
select Remove from Bridge, as shown in Figure 3-5.
Windows Vista removes the network from the bridge
The Start menu appears
2 Click Network and Sharing Center; click Manage network connections
from the Tasks list.
The Network Connections dialog box appears,
3 Right-click the network bridge and select Delete, as shown in
Figure 3-6.
Windows Vista deletes the network bridge
Trang 6164 Bridging with Windows Vista
Bridging with Windows Vista 160
Trang 7Chapter 4: Configuring Printers
In This Chapter
✓ Sharing a printer on your network
✓ Adding a network printer
✓ Switching the default printer
and your multimedia files You also can do things like share a printer among all the computers on your wireless network I don’t need to tell you how helpful that can be these days, especially when more and more house-holds are using multiple computers
In this chapter, I explain how to set up printer sharing across a network, as well as how to add a new printer and change the default printer
Learning to Share
You can add and select printers that you will use over your wireless work For instance, you might be sharing a laser printer on your network and want to add a color inkjet printer that’s connected to another computer
net-to your network Here’s how net-to share a local printer on your entire network:
1 Click Start.
The Start menu appears
2 Click Control Panel.
The Control Panel appears
3 Click Printer in the Hardware and Sound section.
4 Do one of the following:
5 Select the Share This Printer button.
Trang 8be used For example, the uses of slashes or other special characters
are not allowed If you use an illegal character, don’t worry about it,
Windows shows you the error of your ways It is then up to you to rect it It’s important to learn from one’s mistakes
You’re all done here Move along, move along
Trang 9Book III Chapter 4
Feeling Selfish and Turning Off Sharing
Just as you giveth, you can taketh It may occasionally be a good idea to turn
off your printer sharing For example, if you know that you’re running a bit
low on ink or paper (and hey, those cost a lot of money these days!), you may
want to limit access to your printer If you know that you’re going to be tying
up the printer for a few hours and can’t bear the thought of anyone
encroach-ing on your territory (or simply slidencroach-ing in a quick print job), then you may
want to pick up your marbles and go home, or simply un-share your printer
If, after setting up printer sharing on your network, you decide that you no
longer want to share the printer, you can easily switch it off Just follow
these steps:
1 Click Start.
The Start menu appears
2 Click Control Panel.
The Control Panel appears
3 Click Printer in the Hardware and Sound section.
4 Do one of the following:
Trang 10168 Adding a Network Printer
5 Deselect the Share This Printer button.
6 Click OK.
The sharing symbol disappears from the printer’s icon That’s it for switching off printer sharing If you want to add a network printer, mosey on over to the next section, please
Adding a Network Printer
Windows Vista usually installs printers for you automatically if you’re necting the printer directly to your PC; if you’ve been around computers since the Windows XP (or even Windows 95) days, then you likely know this
con-Of course, this might not be enough There are other computers out there just waiting for you to print your prose If you want to add the ability to use
a printer that’s connected to another computer on your network, rather than one connected directly to your computer, you need to follow these instruc-tions for each printer you want to add
Sharing must be enabled before you can add a network printer You must enable sharing from the computer that connects to the printer you want to share
To add a new network printer, follow these steps:
1 Click Start.
The Start menu appears
2 Click Control Panel.
The Control Panel appears
3 Click Printer in the Hardware and Sound section.
4 Click Add a Printer from the menu just under the file menu.
The Add Printer wizard appears
5 Click Add a network, wireless or Bluetooth printer.
The list of available printers appears, as shown in Figure 4-3
6 Select a printer and go to Step 7; otherwise, if you cannot find the printer you want, click The Printer I Want Isn’t Listed option and carry on.
7 Do one of the following:
Feeling Selfish and Turning Off Sharing 167
Adding a Network Printer 168
Changing the Default Printer 170
Trang 11Book III Chapter 4
8 Wait for the newly selected printer to go ahead and configure, and
think of a new name for your printer.
9 Type the name in the dialog box shown in Figure 4-4 (or leave the
default name, it’s really up to you!) and then click Next.
The congratulatory message appears, letting you know that your network printer is now installed
Trang 12170 Changing the Default Printer
10 Do one of the following:
wizard
really works!
You just added a network printer to your personal computing arsenal!
Changing the Default Printer
You can change the printer that Windows Vista uses as its default printer The default printer is the one where your print jobs automatically go Although you can always choose another printer on the network (if there is one), doing noth-ing means your default printer handles the job
Usually, your default printer is your local printer (the one hooked up to your computer), but you can choose to make a network printer the default printer Of course, you may want to look twice and make sure that you’re online; otherwise it’s likely that your network printers won’t appear Here’s how you do it:
1 Click Start.
The Start menu appears
2 Click Control Panel.
The Control Panel appears
3 Click Printer in the Hardware and Sound section.
4 Right-click the printer you want to have as your default printer.
5 Select Set as Default Printer.
A white check mark on a green circle appears on the printer icon It cates that the printer is now the default printer, as shown in Figure 4-5 You’re done
indi-Figure 4-5:
This
printer’s
your default
Trang 13Chapter 5: Confirming
Your Network Works
In This Chapter
✓ Checking your signal strength
✓ Monitoring your network’s activity
✓ Avoiding possible signal obstacles
✓ Handling interference
up a wireless network You may want to yell from the rooftops, or wherever you can find the tallest antennae that your new wireless network
is running without any problems Hold that thought: First check on your network’s health That includes viewing the signal strength as well as moni-toring its activity (that is, the network traffic) After all, what’s the point of having a wireless network if it is an underachiever?
Flexing Your Signal Strength
You’ll be happy to know of a simple way to view the strength of your less network’s signal This method doesn’t provide a great deal of informa-tion, but it’s enough to know whether you ought to move your wireless router closer to your computers Sometimes that’s all you really need to know Don’t forget — a wireless connection is always weaker than a tradi-tional, wired connection In other words, you’ll experience slower download speeds than a wired connection That’s why it’s important to make sure your signal strength is as strong as possible, to guarantee the best possible results from your wireless network
wire-You should check your signal strength at two different times:
Moving components just a few feet from their original positions may cause signal strength to drop In that case you can scurry about, putting everything back in place Then, with thinking cap firmly applied, you can reconsider
Trang 14172 Flexing Your Signal Strength
where you’ll move your equipment You also have to take in to account the realities of where you installed your network; for example, the layout of your house if this is a home network For example, I live in a building from the early 1800s; the walls are quite thick, so if I put my laptop on my desk, next to the wall, I don’t get a very good signal If I move my laptop just a few feet behind
me, the signal jumps to full strength
Windows Vista has several built-in tools for testing your network I discuss these in Book IV, Chapter 3
To view a simple but helpful visual, just follow these steps:
1 Right-click the network icon in the Windows Vista notification area.
A pop-up menu appears
2 Identify the desired network.
Next to the network connection is a small bar graph that provides a quick look at the strength of your wireless network’s signal, as shown
in Figure 5-1 If four or five bars are highlighted, you’re enjoying robust signal reception This is much easier than in past versions of Windows, where you actually had a procedure to work your way through simply to see if you had a decent connection or not
wire-3 When you’re done viewing your signal strength, move your mouse away from the pop-up menu.
You can also find out the strength of your network using a more intensive way The Network and Sharing Center, shown in Figure 5-2, opens and tells the strength with text Here’s how that text breaks down compared
procedure-to the bar graph:
✦ Excellent: Your network is just full of energy This is equivalent to four
or five bars
Trang 15Book III Chapter 5
Monitoring Your Network
✦ Good: Your network is doing a fine job This is equivalent to three bars.
✦ Fair: Your network is doing an OK job, but it’s not living up to its
poten-tial This is equivalent to two bars
✦ Poor: Your network is an underachiever You may want to start shifting
things, because you likely only have one bar
A more sophisticated way of measuring signal strength is discussed a little
later in this chapter Using a third-party software program, you can get a
pretty accurate read on the strength of nearby Wi-Fi access points
Monitoring Your Network
After you’ve decided which wireless networks you want to connect to, some
Windows Vista tools can monitor those networks One of these tools is in
the same dialog box that shows your signal strength Another is a real-time
graphical network monitor that’s part of Windows Task Manager In the
fol-lowing sections you learn how to use these tools Most people use these
tools simply to establish that their network is up and running properly For
example, if your network seems a bit sluggish, these tools will show you
whether or not data is getting in or out
Viewing your network’s activity
In the Wireless Network Connection Status dialog box, you can see how
much data is moving in and out of a PC over your wireless network
Trang 16174 Monitoring Your Network
Here’s how you view it:
1 Confirm that your wireless network is enabled.
If it’s not, enable it If you’re also running a wired network, disable it If you’re using a laptop computer, it may be as simple as flipping a switch
2 Right-click the network icon in Windows Vista notification area.
A pop-up menu appears
3 Select Network and Sharing Center.
The Network and Sharing Center appears
4 Click View status on the Connection row of your wireless connection.
Select the General tab if it’s not already selected
5 The Wireless Connection Status window appears.
In the Activity area you can monitor bytes sent and received, as shown
in Figure 5-3 If there’s a number below Sent but a zero is beneath Received, your wireless network may not be working properly If there are at least three-digit numbers under both Sent and Received, your net-work should work
Viewing a real-time networking graph
To monitor your wireless network, just follow these steps: