Brocade Communications Systems Mobility 7131 Series Service Manual Page 219

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Brocade Mobility 7131 Access Point Product Reference Guide 207
53-1002517-01
6
Default (hexadecimal) 256-bit keys for WP2A/CCMP include:
1011121314151617
18191A1B1C1D1E1F
2021222324252627
28292A2B2C2D2E2F
7. Configure the WPA2-CCMP Mixed Mode field as needed to allow WPA and WPA2 TKIP client
interoperation.
8. Configure the Fast Roaming (802.1x only) field as required to enable additional Mobility 7131
Access Point roaming and key caching options.
NOTE
PMK key caching is enabled internally by default when 802.1x EAP authentication is enabled.
9. Click the Apply button to save any changes made within this New Security Policy screen.
10. Click the Cancel button to undo any changes made within the WPA2/CCMP Settings field and
return to the WLAN screen. This reverts all settings to the last saved configuration.
ASCII Passphrase To use an ASCII passphrase (and not a hexadecimal value), select the checkbox enter an
alphanumeric string of 8 to 63 characters. The string allows character spaces. The
Mobility 7131 Access Point converts the string to a numeric value. This passphrase
saves the administrator from entering the 256-bit key each time keys are generated.
256-bit Key To use a hexadecimal value (and not an ASCII passphrase), select the checkbox and enter
16 hexadecimal characters into each of the four fields displayed.
Allow
WPA/WPA2-TKIP
clients
WPA2-CCMP Mixed Mode enables WPA2-CCMP, WPA-TKIP and WPA2-TKIP clients to
operate together on the network. Enabling this option allows backwards compatibility for
clients that support WPA-TKIP and WPA2-TKIP but do not support WPA2-CCMP. Brocade
Mobility recommends enabling this feature if WPA-TKIP or
WPA2-TKIP supported MUs operate within a WLAN populated by WPA2-CCMP enabled
clients.
Allow WEP clients WPA2-CCMP Mixed Mode enables WPA2-CCMP and WEP clients to operate together on the
network.
Pre-Authentication Selecting this option enables an associated MU to carry out an 802.1x authentication with
another Mobility 7131 Access Point before it roams to it. The Mobility 7131 Access Point
caches the keying information of the client until it roams to the other Mobility 7131 Access
Point. This enables the roaming client to start sending and receiving data sooner by not
having to do 802.1x authentication after it roams. This feature is only supported when
802.1x EAP authentication is enabled.
Opportunistic PMK
Caching
Select the Opportunistic Pairwise Master Key (PMK) Caching option to reduce handoff
latency by pre-establishing security associations between an MU and the Mobility 7131
access points in the wireless network.
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