R3204P16-HP Load Balancing Module System Management Configuration Guide-6PW101

101
Configuring optional parameters of NTP
Specifying the source interface for NTP messages
If you specify the source interface for NTP messages, the device sets the source IP address of the NTP
messages as the primary IP address of the specified interface when sending the NTP messages.
When the device responds to an NTP request received, the source IP address of the NTP response is
always the IP address of the interface that received the NTP request.
Following these steps to specify the source interface for NTP messages:
To do… Use the command…
Remarks
Enter system view
system-view
—
Specify the source
interface for NTP messages
ntp-service
source-interface
interface-type
interface-number
Required
By default, no source interface is specified for NTP
messages, and the system uses the IP address of the
interface determined by the matching route as the
source IP address of NTP messages.
CAUTION:
• 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 serves as the source interface of NTP messages.
• If you have configured the ntp-service broadcast-server or ntp-service multicast-server command, the
source interface of the broadcast or multicast NTP messages is the interface configured with the
respective command.
• If the specified source interface for NTP messa
g
es is down, the source IP address for an NTP messa
g
e
that is sent out is the primary IP address of the outgoing interface of the NTP message.
Disabling an interface from receiving NTP messages
When NTP is enabled, NTP messages can be received from all the interfaces by default, and you can
disable an interface from receiving NTP messages through the following configuration.
To do… Use the command…
Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—
Disable the interface from
receiving NTP messages
ntp-service in-interface disable
Required
An interface is enabled to receive
NTP messages by default.