Page 257 - DCAP311_DCAP607_WIRELESS_NETWORKS

Unit 14: Authentication

the supplicant and the authentication server. This makes 802.1X ideal for wireless access points, Notes
which are typically small and have little memory and processing power.
802.1X authentication can help enhance security for 802.11 wireless networks and wired Ethernet
networks by requiring a certificate or a smart card for network access. This type of authentication
is typically used for workplace connections.
To enable 802.1X on a wireless network

z z Open Manage Wireless Networks by clicking the Start button , clicking Control Panel,
clicking Network and Internet, clicking Network and Sharing Center, and then, in the left
pane, clicking Manage wireless networks.

z z Right-click the network that you want to enable 802.1X authentication for, and then
click Properties.

z z Click the Security tab, and then, in the Security Type list, click 802.1X.
z z In the Encryption Type list, click the encryption type you want to use. On wireless networks,
802.1X can be used with Wired Equivalent Privacy (WEP) or Wi-Fi Protected Access (WPA)
encryption.

z z In the Choose a network authentication method list, click the method you want to use. To
configure additional settings, click Settings
To enable 802.1X on a wired network
You must be logged on as an administrator to perform these steps.

To complete this procedure, you must first enable the Wired AutoConfig service, which is turned
off by default.

z z Click the Start button , and then, in the Search box, type services.msc, and then press
ENTER. If you are prompted for an administrator password or confirmation, type the
password or provide confirmation.
z z In the Services dialog box, click the Standard tab, right-click Wired AutoConfig, and then
click Start.

z z Open Network Connections by clicking the Start button , clicking Control Panel,
clicking Network and Internet, clicking Network and Sharing Center, and then
clicking Manage network connections.
z z Right-click the connection that you want to enable 802.1X authentication for, and then
click Properties. If you are prompted for an administrator password or confirmation,
type the password or provide confirmation.

z z Click the Authentication tab, and then select the Enable IEEE 802.1X authentication check
box.
z z In the Choose a network authentication method list, click the method you want to use. To
configure additional settings, click Settings.

Self-Assessment

State whether the following statements are true or false:
13. The wireless node that requests authentication is often called Supplicant.
14. During authentication, the Authenticator just relays packets between the Supplicant and
the Authentication Server.

15. In a wireless network, 802.1x is not used by an access point to implement WPA.

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