Motorola AP-51 Series Product Reference Manual page 142

4-46 AP-51xx Access Point Product Reference Guide
CAUTION If using the Radius time-based authentication feature to authenticate
!
5. If using an NTP server to supply system time to the access point, configure the
Configuration
the access point network time.
Enable NTP on
point
Preferred Time Server Specify the numerical (non DNS name) IP address and port of the
First Alternate Time
Server
Second Alternate
Time Server
Synchronization
Interval
6. Click Apply
from the screen without clicking the Apply button results in all changes to the screen being
lost.
7. Click Undo Changes
settings displayed on Date and Time Settings screen to the last saved configuration.
access point user permissions, ensure
the Time Zone field. If UTC is not selected, time based authentication
will not work properly. For information on configuring Radius
time-based authentication, see
Group on page 6-76.
field to define the server network address information required to acquire
access
Select the Enable NTP on
connection between the access point and one or more specified
NTP servers. A preferred, first alternate and second alternate NTP
server cannot be defined unless this checkbox is selected.
Disable this option (uncheck the checkbox) if Kerberos is not in use
and time synchronization is not necessary.
primary NTP server. The default port is 123.
Optionally, specify the numerical (non DNS name) IP address and
port of an alternative NTP server to use for time synchronization if
the primary NTP server goes down.
Optionally, specify the numerical (non DNS name) and port of yet
another NTP server for the greatest assurance of uninterrupted
time synchronization.
Define an interval in minutes the access point uses to synchronize
its system time with the NTP server. A synchronization interval
value from 15 minutes to 65535 minutes can be specified. For
implementations using Kerberos, a synchronization interval of 15
minutes (default interval) or sooner is recommended.
to save any changes to the Date and time Settings screen. Navigating away
(if necessary) to undo any changes made. Undo Changes reverts the
UTC has been selected from
Defining User Access Permissions by
access point checkbox to allow a
NTP Server