Cisco compatible extensions, version 4, Cisco compatible extensions, version 4 (ccxv4) – Intel 3945ABG User Manual

Page 82

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Prompt for the user name and password: Prompts for user name and password

before you connect to the wireless network. The user name and password must first be

set in the authentication server by the administrator.

❍

Use the following user name and password: The user name and password must be

first set in the authentication server by the administrator.

■

User Name: This user name must match the user name that is set in the

authentication server.

■

Domain: Name of the domain on the authentication server. The server name

identifies a domain or one of its sub-domains (for example, zeelans.com, where

the server is blueberry.zeelans.com). NOTE: Contact your administrator to obtain

the domain name.

■

Password: This password must match the password that is set in the

authentication server. The entered password characters display as asterisks.

■

Confirm Password: Reenter the user password.

2. Click OK to save the settings and close the page. Server verification is not required.

Cisco Compatible Extensions, Version 4 (CCXv4)

To set up a client with EAP-FAST authentication with Cisco Compatible Extensions, version 4 (CCXv4):

1. Click Profiles on the Intel PROSet/Wireless main window.

2. On the Profile page, click Add to open the Create Wireless Profile Wizard's General Settings.

3. Wireless Network Name (SSID): Enter the network identifier.

4. Profile Name: Enter a descriptive profile name.

5. Operating Mode: Click Network (Infrastructure).

6. Click Next to open the Security Settings.

7. Network Authentication: Select WPA-Enterprise or WPA2-Enterprise.

8. Data Encryption: Select one of the following:

❍

TKIP provides per-packet key mixing, a message integrity check and a rekeying mechanism.

❍

AES-CCMP (Advanced Encryption Standard - Counter CBC-MAC Protocol) is used as the data

encryption method whenever strong data protection is important.

AES-CCMP

is recommended.

9. Data Encryption: Select AES-CCMP.

10. Enable 802.1x: Selected.

11. Authentication Type: Select EAP-FAST to be used with this connection.

Step 1 of 3: EAP-FAST Provisioning

With CCXv4, EAP-FAST supports two modes for provisioning:

●

Server-Authenticated Mode: Provisioning inside a server authenticated (TLS) tunnel.

●

Server-Unauthenticated Mode: Provisioning inside an unauthenticated (TLS) tunnel.

NOTE: Server-Authenticated Mode provides significant security advantages over Server-

Unauthenticated Mode even when EAP-MSCHAPv2 is being used as an inner method. This mode

protects the EAP-MSCHAPv2 exchanges from potential Man-in-the-Middle attacks by verifying the

server’s authenticity before exchanging MSCHAPv2. Therefore, Server-Authenticated Mode is

preferred whenever it is possible. EAP-FAST peer must use Server-Authenticated Mode whenever a

certificate or public key is available to authenticate the server and ensure the best security practices.

Provisioning of Protected Access Credentials (PAC):

EAP-FAST uses a PAC key to protect the user credentials that are exchanged. All EAP-FAST authenticators are

identified by an authority identity (A-ID). The local authenticator sends its AID to an authenticating client, and

the client checks its database for a matching AID. If the client does not recognize the AID, it requests a new PAC.

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