Services Configuration 9 - 39
8. Set the following Session Resumption/Fast Reauthentication settings to define how server policy sessions are
re-established once terminated and require cached data to resume:
9. Select OK to save the settings to the server policy configuration. Select Reset to revert to the last saved configuration.
10. Select the Client tab and ensure the Activate RADIUS Server Policy button remains selected.
The access point uses a RADIUS client as a mechanism to communicate with a central server to authenticate users and
authorize access.
The client and server share a secret (a password). That shared secret followed by the request authenticator is put through
a MD5 hash to create a 16 octet value used with the password entered by the user. If the user password is greater than 16
octets, additional MD5 calculations are performed, using the previous ciphertext instead of the request authenticator. The
server receives a RADIUS access request packet and verifies the server possesses a shared secret for the client. If the
server does not possess a shared secret for the client, the request is dropped. If the client received a verified access accept
packet, the username and password are considered correct, and the user is authenticated. If the client receives a verified
access reject message, the username and password are considered incorrect, and the user is not authenticated.
Figure 9-22 RADIUS Server Policy screen - Client tab
Enable Session Resumption Select the check box to control volume and the duration cached data is
maintained by the server policy upon the termination of a server policy session.
The availability and quick retrieval of the cached data speeds up session
resumption. This setting is disabled by default.
Cached Entry Lifetime Use the spinner control to set the lifetime (1 - 24 hours) cached data is maintained
by the RADIUS server policy. The default setting is 1 hour.
Maximum Cache Entries Use the spinner control to define the maximum number of entries maintained in
cache for this RADIUS server policy. The default setting is 128 entries.
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