Nortel 6220, Руководство пользователя, Страница: 128 / 178

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WLAN Cable Access Point 6220 CSU NTPM99CA Rel 2.0 Issue 5 Dec 2005
Enter a value in this field if you wish to disconnect users after a period of
inactivity. The value entered will be the number of seconds that must
pass without activity before users are disconnected.
The default value is 300 seconds (or five minutes). The range of
accepted values is between 0 and 3825.
Disable Grace Period -- The grace period allows a client to roam
between access points without losing open TCP connections. Select this
checkbox if you wish to disable the grace period. If selected, the user
does not receive a grace period; if unselected, the user receives a grace
period.
Note: The Grace Period must be enabled (unchecked) if you wish to use
WARP.
Re-authenticate Rejected Users Every n Minute -- Select the interval
at which users who have not been authenticated will be allowed to re-
authenticate. The default interval is 60 minutes.
Accept the User -- Select this radio button if you wish to allow network
access to the user if the RADIUS server is down.
Reject the User -- Select this radio button if you wish to deny network
access to the user if the RADIUS server is down.
Do not change user authentication state -- Select this checkbox if you
wish to keep the user authentication state the same as that before the
RADIUS server went down. When this checkbox is selected, if the user
was authenticated before the server went down, then the user will remain
authenticated. If the user was not authenticated before the RADIUS
server went down, then the user will remain unauthenticated.
Note: This field is used in conjunction with the "After n Failed
Authentication Attempts and "Make users wait n seconds" fields.
Attempt Re-authentication Every n Minutes -- If the RADIUS server
cannot be reached, the access point will attempt to authenticate all clients
via the RADIUS server according to the interval specified here. The re-
authentication interval must be specified in increments of 15 minutes.
Valid values are 15, 30, 45, etc.
Enable RADIUS Accounting --Select this button if you wish to enable
RADIUS accounting. Accounting keeps track of the number of bytes
and packets sent by a client. It also keeps track of the amount of time a
client has been authenticated. You will want to select this button if you
wish to monitor the amount of traffic a client passes, or the amount of