Avaya AP-4 User Manual page 182

Security
3. Enter a Re-keying Interval.
• The Re-keying Interval determines how often a client's
encryption key is changed and can be set to any value between
60 - 65535 seconds. Rekeying frustrates hacking attempts
without taxing system resources. Setting a fairly frequent rekey
value (900 seconds=15 minutes) effectively protects against
intrusion without disrupting network activities.
4. Click OK to save the changes.
5. If you have not already done so, configure the RADIUS
authentication settings (see
for details).
6. Reboot the Access Point.
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RADIUS Authentication with 802.1x
Avaya Wireless AP-4/AP-5 User's Guide