Cisco AP541N-A-K9 Administration Guide - Page 76

4 Wireless Modifying Virtual Access Point Settings Table 16 WPA Enterprise Field Descriptions Field Description WPA Versions Select the types of client stations you want to support: • WPA. If all client stations on the network support the original WPA but none support the newer WPA2, then select WPA. • WPA2. If all client stations on the network support WPA2, we suggest using WPA2, as it provides the best security by supporting the IEEE 802.11i standard. Enable preauthentication • WPA and WPA2. If you have a mix of clients, some of which support WPA2 and others which support only the original WPA, select both WPA and WPA2. This lets both WPA and WPA2 client stations associate and authenticate, but uses the more robust WPA2 for clients that support it. This WPA configuration allows more interoperability, at the expense of some security. If in WPA Versions you selected only WPA2 or both WPA and WPA2, you can enable pre-authentication for WPA2 clients. Click Enable pre-authentication if you want WPA2 wireless clients to send a pre-authentication packet. The preauthentication information is relayed from the access point the client is using to the target access point. Enabling this feature can speed up authentication for roaming clients that connect to multiple access points. This option does not apply if you selected only WPA for WPA Versions because WPA does not support this feature. 73 Cisco AP 541N Dual-band Single-radio Access Point Quick Start Guide