Assessments - 5, GPA: 3.6
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4 Follow the on-screen instructions. 5353n N Using Your VAIO Computer Using Wireless LAN (WLAN) Using the Sony Wireless LAN (WLAN), all your digital devices with built-in WLAN functionality communicate freely with each other through a powerful network. A WLAN is a network in which a user can connect to a local area network (LAN) through a wireless (radio) connection. So there is no need anymore to pull cables or wires through walls and ceilings. The Sony WLAN supports all normal Ethernet activities, but with the added benefits of mobility and roaming. You can still access information, internet/intranet and network resources, even in the middle of a meeting, or as you move from one place to another. You can communicate without an access point, which means that you can communicate between a limited number of computers (ad-hoc). Or you can communicate through an access point, which allows you to create a full infrastructure network (infrastructure). . In some countries, using WLAN products may be restricted by the local regulations (e.g. limited number of channels). Therefore, before activating the WLAN functionality, read the Regulations Guide carefully. Channel selection is explained further in this manual (see Wireless LAN Channel Selection (page 61)). WLAN uses the IEEE 802.11b/g standard, which specifies the used technology. The standard includes the encryption method: Wired Equivalent Privacy (WEP), which is a security protocol and WiFi Protected Access (WPA - Proposed jointly by the IEEE and Wi-Fi Alliance, WiFi Protected Access is a specification of standards based, interoperable security enhancements that increase the level of data protection and access control for existing WiFi networks. WPA has been designed to be forward compatible with the IEEE 802.11i specification. It utilizes the enhanced data encryption TKIP (Temporal 5454n N Using Your VAIO Computer Key Integrity Protocol) in addition to user authentication using 802.1X and EAP (Extensible Authentication Protocol)). Data encryption protects the vulnerable wireless link between clients and access points. Besides that, there are other typical LAN security mechanisms to ensure privacy, such as: password protection, end-to-end encryption, virtual private networks, and authentication. Wireless LAN devices using the IEEE 802.11a standard and the ones using the IEEE 802.11b or g standard cannot communicate because the frequencies are different. IEEE 802.11b: The standard speed is 11 Mbps, or about 30 to 100 times faster than a standard dial up. IEEE 802.11a/g: The standard speed is 54 Mbps, or about 5 times faster than a Wireless LAN device using the IEEE 802.11b standard. 5555n N Using Your VAIO Computer Communicating without an Access Point (Ad-hoc) An ad-hoc network is a network in which a local network is created only by the wireless devices themselves, with no other central controller or access point. Each device communicates directly with other devices in the network. You can set up an ad-hoc network easily at home. 5656n N Using Your VAIO Computer To communicate without an access point (ad-hoc) 1 Turn on the WIRELESS or WIRELESS LAN switch. The WIRELESS LAN indicator lights up. On models with the Bluetooth functionality*1, double-click ( Switch window. Select the Enable 2.4 GHz Wireless LAN chec / ) on the taskbar to display the Wireless Device k box and click OK. 2 Click Start and then Control Panel. 3 Click Network and Internet Connections. 4 Click Network Connections. The Network Connections window appears. 5 Right-click Wireless Network Connection, then click Properties. The Wireless Network Connection Properties window appears. 6 Select the Wireless Networks tab. 7 Click the Add… button. The Wireless network properties window appears. 8 Enter a network name (SSID)*2 . You can choose a 32-digit alphanumeric name. 9 Select Open from the Network Authentication drop-down box. 10 Select WEP from the Data Encryption drop-down box. 11 Deselect the The key is provided for me automatically option button. Some information becomes visible. 5757n N Using Your VAIO Computer 12 Enter the network key*2. The network key should be 5 or 13 alphanumeric characters or 10 or 26 hexadecimal*3 characters long. You can choose whichever you want. 13 Enter exactly the same network key again, for confirmation. 14 Select the check box This is a computer-to-computer (ad hoc) network; wireless access points are not used at the bottom of the window. 15 Click OK. Your network name appears in the Preferred networks. 16 Click Advanced. The Advanced window appears. 17 Select the Computer-to-computer (ad hoc) networks only option button. 18 Click Close. 19 Click OK. The computer is ready to communicate with another computer. *1 See the online Specifications to see whether your model supports the Bluetooth functionality. *2 If you want to communicate between two or more computers, you need to configure all these computers in the exact same way. This means that you need to e...
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