Brocade Mobility RFS7000-GR Controller System Reference Guide (Supporting software release 4.1.0.0-040GR and later) - Manual (Page 143)

Brocade Mobility RFS7000-GR Controller System Reference Guide 129
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Viewing and configuring switch WLANs
4
5. Select the Broadcast Key Rotation checkbox to enable periodically changing the broadcast key
for this WLAN.
Only broadcast key changes when required by associated MUs to reduce the transmissions of
sensitive key information. This value is enabled by default.
6. Refer to the Update broadcast keys every field to specify a time period (in seconds) for
broadcasting encryption-key changes to MUs.
Set key broadcasts to a shorter interval (at least 60 seconds) for tighter security on wireless
connections. Set key broadcasts to a longer interval (at most, 86400 seconds) to extend key
times for wireless connections. The default is 7200 seconds.
7. Configure the Key Settings field as needed to set an ASCII Passphrase and key values.
NOTE
The Web UI does not support saving passphrases in encrypted format. To save passphrases in an
encrypted format, configure the passphrases using the Command Line Interface. Refer to the CLI
Reference Guide for details on configuring passphrases using the CLI.
Default (hexadecimal) 256-bit keys for WPA/TKIP include:
• 1011121314151617
ASCII Passphrase To use an ASCII passphrase (and not a hexadecimal value), select the checkbox
and enter an alphanumeric string of 8 to 63 characters. The alphanumeric string
allows character spaces. The switch 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.