Prohibiting specified interfaces from receiving NTP packets

Prohibit a specified interface from receiving NTP packets as follows:
1. Run the system-view command to access the system view.
2. Run the interface interface-type interface-number command to enter the interface view.
3. Run the following commands:
The ntp-service in-interface disable command prohibits the firewall interface from receiving NTP IPv4 packets.
The ntp-service ipv6 in-interface disable command prohibits the firewall interface from receiving NTP IPv6 packets.

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