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Figure 4.32: Wireless Connection Information
8. Test the connection by disabling all other connections in the Network
Connections window (see figure 4.38) and browsing the Internet.
You can now use GlobeSurfer 3G's wireless network from the configured PC.
However, so can any other user with a wireless PC, which happens to be in
your network's radio range. To prevent this scenario, the next step is to secure
your wireless network, allowing only specific users to connect.
4.3.2 Securing Your Wireless Network
The GlobeSurfer 3G wireless network is ready for operation with its default
values. However, as soon as your wireless connection is established, any com-
puter with a wireless capability can connect to your LAN. The following sec-
tion describes how to secure your wireless connection using the Wi-Fi Pro-
tected Access (WPA) security protocol.
The Wi-Fi Alliance created the WPA security protocol as a data encryption
method for 802.11 wireless local area networks (WLANs). WPA is an industry-
supported, pre-standard version of 802.11i utilizing the Temporal Key Integrity
Protocol (TKIP), which fixes the problems of Wired Equivalent Privacy (WEP),
including the use of dynamic keys.
4.3.2.1 Securing Your Wireless Network with WPA
1. Click the Network Connections icon on the sidebar, the Network Connections
screen will appear (see figure 4.33).
2. Click the LAN wireless connection link (or its Edit icon) to view its prop-
erties. The LAN Wireless Properties screen will appear (see figure 4.34).
Figure 4.33: Network Connections
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