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S12700 V200R010C00 Configuration Guide - Device Management

This document describes the principles and configurations of the Device Management features, and provides configuration examples of these features.
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Disabling a Specified Interface from Receiving NTP Packets

Disabling a Specified Interface from Receiving NTP Packets


Disable receipt of NTP packets by interfaces connected to external devices in the following scenarios:
  • When an unreliable clock server exists on the interface. By default, after the NTP function is enabled, all interfaces can receive NTP packets. An unreliable clock source makes NTP clock data inaccurate.
  • When the NTP clock data has been modified by a malicious attack on the interface.


  1. Run:


    The system view is displayed.

  2. Run:

    interface interface-type interface-number

    The interface for receiving NTP packets is specified.

  3. Run:

    ntp-service [ ipv6 ] in-interface disable

    The interface is disabled from receiving NTP packets.

Updated: 2019-08-21

Document ID: EDOC1000142080

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