496CHAPTER 21: CONFIGURING AAA FOR NETWORK USERS

Assigning Encryption When a user turns on a wireless laptop or PDA, the device attempts to Types to Wireless find an access point and form an association with it. Because MAPs

Users support the encryption of wireless traffic, clients can choose an encryption type to use. You can configure MAPs to use the encryption algorithms supported by the Wi-Fi Protected Access (WPA) security enhancement to the IEEE 802.11 wireless standard. (For details, see Chapter 13, “Configuring User Encryption,” on page 281.)

If you have configured MAPs to use specific encryption algorithms, you can enforce the type of encryption a user or group must have to access the network. When you assign the Encryption-Type attribute to a user or group, the encryption type or types are entered as an authorization attribute into the user or group record in the local WX database or on the RADIUS server. Encryption-Type is a 3Com vendor-specific attribute (VSA).

Clients who attempt to use an unauthorized encryption method are rejected.

Assigning and Clearing Encryption Types Locally

To restrict wireless uses or groups with user profiles in the local WX database to particular encryption algorithms for accessing the network, use one of the following commands:

set user username attr encryption-type value

set usergroup groupname attr encryption-type value set mac-user username attr encryption-type value

set mac-usergroup groupname attr encryption-type value

MSS supports the values for Encryption-Type shown in Table 45. The values are listed from most secure to least secure. (For user encryption details, see Chapter 13, “Configuring User Encryption,” on page 281.)

Table 45 Encryption Type Values and Associated Algorithms

Encryption-Type

Encryption Algorithm

Value

Assigned

 

 

1

Advanced Encryption Standard using Counter with Cipher

 

Block Chaining Message Authentication Code (CBC-MAC)

 

or AES_CCM.

 

 

2

Reserved.

 

 

4

Temporal Key Integrity Protocol (TKIP).

 

 

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3Com WXR100 3CRWXR10095A, WX4400 3CRWX440095A, WX1200 3CRWX120695A manual Assigning and Clearing Encryption Types Locally

WX1200 3CRWX120695A, WX4400 3CRWX440095A, WXR100 3CRWXR10095A, WX2200 3CRWX220095A specifications

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