FS TAP Series, Справочное руководство

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TAP Series Switch Command Line Reference
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Default
There is no ntp key is trusted by default.
Usage
If authentication is enabled, use this command to define one or more key numbers
(corresponding to the keys defined with the ntp key command) that a peer NTP system must
provide in its NTP packets, in order for this system to synchronize to it. This function provides
protection against accidentally synchronizing the system to a system that is not trusted,
because the other system must know the correct authentication key.
Examples
The following example shows how to configure the system to synchronize only to systems
providing authentication key 123
Switch(config)# ntp trustedkey 123
The following example shows how to disable authentication of the identity of the system.
Switch(config)# no ntp trustedkey 123
Related Commands
ntp key