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Related commands
ntp-service authentication enable
ntp-service authentication-keyid
ntp-service source
Use
ntp-service source
to specify the source interface for NTP messages.
Use
undo ntp-service source
to restore the default.
Syntax
ntp-service source
interface-type interface-number
undo ntp-service source
Default
No source interface is specified for NTP messages. The device does the following:
•
Searches the routing table for the outbound interface of NTP messages.
•
Uses the primary IP address of the outbound interface as the source IP address for NTP
messages.
Views
System view
Predefined user roles
network-admin
mdc-admin
Parameters
interface-type interface-number
: Specifies an interface by its type and number.
Usage guidelines
If you specify the source interface for NTP messages, the device sets the source IP address of the
NTP messages to the primary IP address of the specified interface when sending the NTP
messages.
When the device responds to an NTP request, the source IP address of the NTP response is always
the IP address of the interface that has received the NTP request.
If you do not want the IP address of an interface on the local device to become the destination
address for response messages, use the command.
•
If you have specified the source interface for NTP messages in the
ntp-service unicast-server
or
ntp-service unicast-peer
command, the interface specified in the
ntp-service
unicast-server
or
ntp-service unicast-peer
command works as the source interface for NTP
messages.
•
If you have configured the
ntp-service
broadcast-server
or
ntp-service
multicast-server
command, the source interface for the broadcast or multicast NTP messages is the interface
configured with the respective command.
•
If the specified source interface is down, the device does not send NTP messages.
Examples
# Specify the source interface for NTP messages as VLAN-interface 1.
<Sysname> system-view
[Sysname] ntp-service source vlan-interface 1