Cisco Aironet 1100 Series Installation And Configuration Manual page 84

Managing the System Time and Date
Command
Step 4 ntp trusted-key key-number
Step 5
end
Step 6
show running-config
Step 7 copy running-config startup-config
To disable NTP authentication, use the no ntp authenticate global configuration command. To remove
an authentication key, use the no ntp authentication-key number global configuration command. To
disable authentication of the identity of a device, use the no ntp trusted-key key-number global
configuration command.
This example shows how to configure the access point to synchronize only to devices providing
authentication key 42 in the device's NTP packets:
AP(config)# ntp authenticate
AP(config)# ntp authentication-key 42 md5 aNiceKey
AP(config)# ntp trusted-key 42
Cisco Aironet 1100 Series Access Point Installation and Configuration Guide
6-18
Purpose
Specify one or more key numbers (defined in Step 3) that a peer
NTP device must provide in its NTP packets for this access point to
synchronize to it.
By default, no trusted keys are defined.
For key-number, specify the key defined in Step 3.
This command provides protection against accidentally
synchronizing the access point to a device that is not trusted.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Chapter 6 Administering the Access Point
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