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38 Chapter 4
Figure 32 Enter Credentials - PEAP-MS-CHAP v2
19.Enter the User name, Password and Domain name, and then click OK.
A wireless connection should now be established.
Preserving Wireless Connections
Windows XP Embedded WFR2 includes a tool called Regpersistence.exe which is
designed to configure wireless access in Write Filter Enable mode. When you configure
wireless access with this utility, the authentication credentials persist across reboots,
eliminating the need to re-authenticate each time the client systems are restarted. The
utility preserves the service set identifier (SSID) for wireless connections across
workgroup modes and domains. When Windows XP Embedded clients restart, they are
automatically connected to the desired wireless access point.
Windows XP Embedded clients can connect to wireless networks using the following
network authentication modes:
• Open mode with WEP
Note
This authentication mode requires the network key to be entered while the
client is connected to the wireless network. Windows XP Embedded clients
are automatically connected to the wireless network after reboot.
• Shared mode with WEP
• WPA authentication with AES and TKIP
• WPA-PSK with AES and TKIP data encryption.
• WPA2 with AES and TKIP data encryption
• WPA2-PSK with AES and TKIP data encryption.
• PEAP authentication process
The session keys that are generated during the PEAP authentication process provide
keying material for the Wired Equivalent Privacy (WEP) encryption keys that encrypt the
data that is sent between wireless clients and wireless access points.
You can use PEAP with any of the following authentication methods for wireless
authentication (PEAP is not supported for use with EAP-MD5):
• EAP-TLS, which uses certificates for server authentication and either certificates or
smart cards for user and client computer authentication.
• EAP-MS-CHAP v2, which uses certificates for server authentication and credentials for
user authentication.
• Non-Microsoft EAP authentication methods.