Extreme Networks Altitude 4700 Series Product Reference Manual page 214

Configuring Access Point Security
WPA2/CCMP is based on the concept of a Robust Security Network (RSN), which defines a hierarchy of
keys with a limited lifetime (similar to TKIP). Like TKIP, the keys the administrator provides are used to
derive other keys. Messages are encrypted using a 128-bit secret key and a 128-bit block of data. The
end result is an encryption scheme as secure as any the access point provides.
To configure WPA2-CCMP on the access point:
1 Select Network Configuration > Wireless > Security from the access point menu tree.
If security policies supporting WPA2-CCMP exist, they appear within the Security Configuration
screen. These existing policies can be used as is, or their properties edited by clicking the Edit button.
To configure a new security policy supporting WPA2-CCMP, continue to step 2.
2 Click the Create button to configure a new policy supporting WPA2-CCMP.
The New Security Policy screen displays with no authentication or encryption options selected.
3 Select the WPA2/CCMP (802.11i) checkbox.
The WPA2/CCMP Settings field displays within the New Security Policy screen.
4 Ensure the Name of the security policy entered suits the intended configuration or function of the
policy.
5 Configure the Key Rotation Settings field as required to set Broadcast Key Rotation and the update
interval.
214
Altitude 4700 Series Access Point Product Reference Guide