Disabling An Interface From Receiving Ntp Messages; Configuring The Allowed Maximum Number Of Dynamic Sessions - HP 6125G Configuration Manual

When the device responds to an NTP request received, the source IP address of the NTP response is
always the destination IP address of the NTP request.
Configuration guidelines
• The source interface for NTP unicast messages is the interface specified in the ntp-service
unicast-server or ntp-service unicast-peer command.
The source interface for NTP broadcast or multicast messages is the interface where you configure
•
the ntp-service broadcast-server or ntp-service multicast-server command.
Configuration procedure
To specify the source interface for NTP messages:
Step
1. Enter system view.
2. Specify the source interface
for NTP messages.

Disabling an interface from receiving NTP messages

If NTP is enabled, NTP messages can be received from all interfaces by default. You can disable an
interface from receiving NTP messages by using the following configuration.
Step
1. Enter system view.
2. Enter VLAN interface view.
3. Disable the interface from
receiving NTP messages.
Configuring the allowed maximum number of dynamic
sessions
NTP has the following types of associations:
Static association—An association that a user has manually created by using an NTP command.
•
• Dynamic association—Temporary association created by the system during operation. A dynamic
association is removed if the system fails to receive messages from it over a specific period of time.
The following describes how an association is established in different operation modes:
• Client/server mode—After you specify an NTP server, the system creates a static association on the
client. The server simply responds passively upon the receipt of a message, rather than creating an
association (static or dynamic).
Command
system-view
ntp-service source-interface
interface-type interface-number
Command
system-view
interface interface-type
interface-number
ntp-service in-interface disable
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Remarks
N/A
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.
Remarks
N/A
N/A
By default, an interface is enabled
to receive NTP messages.