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Security
Client Support
Mechanism
WPA over 802.1X
Requires WPA-enabled system
Mode
and network card driver
(native support provided in
Windows XP)
WPA PSK Mode
Requires WPA-enabled system
and network card driver
(native support provided in
Windows XP)
WPA2 with 802.1X Requires WPA-enabled system
and network card driver (native
support provided in Windows
XP)
WPA2 PSK Mode Requires WPA-enabled system
and network card driver (native
support provided in Windows
XP)
Note: You must enable data encryption through the web or CLI in order to enable all
types of encryption (WEP, TKIP, or AES) in the access point.
Table 5-2. Wireless Security Considerations
Implementation Considerations
• Provides robust security in WPA-only mode
(i.e., WPA clients only)
• Offers support for legacy WEP clients, but with
increased security risk (i.e., WEP authentication
keys disabled)
• Requires configured RADIUS server
• 802.1X EAP type may require management of
digital certificates for clients and server
• Provides good security in small networks
• Requires manual management of pre-shared key
• Provides the strongest security in WPA2-only
mode
• Provides robust security in mixed mode for WPA
and WPA2 clients
• Offers fast roaming for time-sensitive client
applications
• Requires configured RADIUS server
• 802.1X EAP type may require management of
digital certificates for clients and server
• Clients may require hardware upgrade to be WPA2
compliant
• Provides robust security in small networks
• Requires manual management of pre-shared key
• Clients may require hardware upgrade to be WPA2
compliant
5
Radio Interface
5-67
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