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Windows Vista Security: Praxisorientierte Sicherheit für Profis by Marcus Nasarek

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Configuring Dial-Up, Broadband, and On-the-Go Networking
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Establishing Network Connections
Network connections are the actual settings that allow you to connect to a network.
They require several configurations in order to work. First, you must have a hardware
device offering you connectivity to the network. You also need a profile associated with
the network connection, and you must configure the network protocols to use on the
related network adapter. Each setting is required for any connection to work properly.
You must have a connection defined in order to establish a connection to a network. To
verify that you have a connection defined, you can use the Network Connections win-
dow, as shown in Figure 17-18. The Network Connections window holds all of the net-
work connections defined for your computer. When you install network hardware in
your computer, Windows Vista creates a connection in the Network Connections win-
dow. If you install an Ethernet card, Windows Vista creates a Local Area Connection in
the Network Connections window. If you install a wireless network adapter, Windows
Vista creates a Wireless Network Connection in the Network Connections window.
To open the Network Connections window, follow these steps:
1. Click Start and then click Control Panel.
2. In the Control Panel, click Network and Internet and then click Network and
Sharing Center.
3. In the Network and Sharing Center, click “Manage network connections” in the
left pane, under Tasks.
Figure 17-17. Viewing the status of Windows Firewall
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Chapter 17: Mastering Dial-Up, Broadband, and On-the-Go Networking
In the Network Connections window, you will see the status of each connection. If a
connection is active, you will see a standard icon and a status entry that shows the
name of the connected network. For an error status, you will see the adapter icon
with a red X and a related error in the Status column, such as “Not connected,”
“Network cable unplugged,” or “Unavailable Device Missing.” Once you’ve veri-
fied that you have a network connection, you will want to connect to a network or
the Internet using dial-up, broadband, or VPN.
To activate a connection that is not connected, right-click the connection and then
select Connect/Disconnect. This starts the Connect to a Network Wizard. On the
“Select a network to connect to” page, click the network you want to connect to and
then click Connect. Windows Vista will establish a connection to the network using
the connection settings you previously defined. Click Close when the connection
process completes.
Alternatively, you can establish a connection using the following steps:
1. Click Start and then click Connect To. This starts the Connect to a Network
Wizard.
2. On the “Select a network to connect to” page, click the network you want to
connect to and then click Connect.
3. Windows Vista will establish a connection to the network using the connection set-
tings you previously defined. Click Close when the connection process completes.
If your connection fails, Windows Vista will show you a troubleshooting dialog box,
which gives you the following options:
Diagnose the problem
The wizard goes through a check of the connection properties and tries to diag-
nose the problem with your connection. If Windows Vista does not find a prob-
lem, you are prompted to report the problem to Microsoft.
Figure 17-18. Viewing and establishing network connections

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