F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices System Management and Maintenance Command Reference-6PW100
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ntp-service unicast-server
Use ntp-service unicast-server to designate an NTP server for the device.
Use undo ntp-service unicast-server to remove an NTP server designated for the device.
Syntax
ntp-service unicast-server [ vpn-instance vpn-instance-name ] { ip-address | server-name }
[ authentication-keyid keyid | priority | source-interface interface-type interface-number | version
number ] *
undo ntp-service unicast-server [ vpn-instance vpn-instance-name ] { ip-address | server-name }
Default
No NTP server is designated for the device.
Views
System view
Default command level
3: Manage level
Parameters
vpn-instance vpn-instance-name: Specifies the VPN to which the NTP server belongs, where
vpn-instance-name is a case-sensitive string of 1 to 31 characters. If the NTP server is on the public
network, do not specify this option.
ip-address: IP address of the NTP server. It must be a unicast address, rather than a broadcast address,
a multicast address or the IP address of the local clock.
server-name: Host name of the NTP server, which is a string of 1 to 20 characters.
authentication-keyid keyid: Specifies the key ID to be used for sending NTP messages to the NTP server,
where keyid is in the range of 1 to 4294967295.
priority: Specifies this NTP server as the first choice under the same condition.
source-interface interface-type interface-number: Specifies the source interface for NTP messages. In an
NTP message the local device sends to the NTP server, the source IP address is the primary IP address of
this interface. The interface-type interface-number argument represents the interface type and number.
version number: Specifies the NTP version, where number is in the range of 1 to 4 and defaults to 3.
Usage guidelines
To synchronize the PE to a PE or CE in a VPN, specify the vpn-instance vpn-instance-name option in the
command.
If you include the vpn-instance vpn-instance-name option in the undo ntp-service unicast-server
command, the command removes the NTP server with the IP address of ip-address in the specified VPN.
If you do not include the vpn-instance vpn-instance-name option in this command, the command removes
the NTP server with the IP address of ip-address in the public network.
Examples
# Designate NTP server 10.1.1.1 for the device, and configure the device to run NTP version 3.
<Sysname> system-view
[Sysname] ntp-service unicast-server 10.1.1.1 version 3