Motorola Solutions WiNG 5.2.6, Справочное руководство

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6 - 22 WiNG 5.2.6 Access Point System Reference Guide
6.1.2.7 WEP 64
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Configuring WLAN Security
Wired Equivalent Privacy (WEP) is a security protocol specified in the IEEE Wireless Fidelity (Wi -Fi) standard. WEP is
designed to provide a WLAN with a level of security and privacy comparable to that of a wired LAN.
WEP can be used with open, shared, MAC and 802.1 X EAP authentications. WEP is optimal for WLANs supporting
legacy deployments when also used with 802.1X EAP authentication to provide user and device authentication and
dynamic WEP key derivation and periodic key rotation. 802.1X provides authentication for devices and also reduces
the risk of a single WEP key being deciphered.
WEP 64 uses a 40 bit key concatenated with a 24-bit initialization vector (IV) to form the RC4 traffic key. WEP 64 is a
less robust encryption scheme than WEP 128 (containing a shorter WEP algorithm for a hacker to potentially
duplicate), but networks that require more security are at risk from a WEP flaw. WEP is only recommended if there
are client devices incapable of using higher forms of security. The existing 802.11 standard alone offers
administrators no effective method to update keys.
To configure WEP 64 encryption on a WLAN:
1. Select Configuration > Wireless > Wireless LANs to display a high-level display of the existing WLANs.
2. Select the Add button to create an additional WLAN, or select Edit to modify the properties of an existing
wireless controller WLAN.
3. Select Security .
4. Select the WEP 64 radio button from within the Select Encryption field.
The screen populates with the parameters required to define a WEP 64 configuration for the WLAN.