Disabling An Interface From Receiving Ntp Messages; Configuring The Maximum Number Of Dynamic Associations - HP 6125XLG Configuration Manual

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

When NTP is enabled, all interfaces by default can receive NTP messages. For security purposes, you
can disable some of them from receiving NTP messages.
To disable an interface from receiving NTP messages:
Step
1. Enter system view.
2. Enter interface view.
3. Disable the interface from
receiving NTP messages.

Configuring the maximum number of dynamic associations

NTP has the following types of associations:
Static association—A manually created association.
•
Dynamic association—Temporary association created by the system during NTP operation. A
•
dynamic association is removed if no messages are exchanged over a specific period of time.
The following describes how an association is established in different association 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).
• Symmetric active/passive mode—After you specify a symmetric-passive peer on a symmetric active
peer, static associations are created on the symmetric-active peer, and dynamic associations are
created on the symmetric-passive peer.
Broadcast or multicast mode—Static associations are created on the server, and dynamic
•
associations are created on the client.
Command
system-view
•
Specify the source interface for
NTP messages:
ntp-service source-interface
interface-type interface-number
•
Specify the source interface for
IPv6 NTP messages:
ntp-service ipv6 source
interface-type interface-number
Command
system-view
interface interface-type
interface-number
•
For IPv4:
ntp-service inbound disable
•
For IPv6:
ntp-service ipv6 inbound
disable
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Remarks
N/A
By default, no source interface is
specified for NTP messages.
Remarks
N/A
N/A
By default, an interface is enabled
to receive NTP messages.