IPS - NTP v1 tab

Basic configuration

Maximum size of packets (bytes)

Enter the maximum size allowed for NTP v1 packets (default value: 72 bytes).

NTP modes

This list sets out the known NTP v1 modes (active symmetric, passive symmetric, client and server) and the action applied to each one of them.

You can:

• Allow or prohibit modes individually by clicking on their associated action,
• Select all modes with the Select all button and apply a common action to them using Allow and Block.

Advanced properties

Prohibited reference IDs

This list makes it possible to block additional NTP reference IDs (LOCL, LCL, etc.):

• Click on Add and specify the name of the Reference ID,
• Select a Reference ID or all Reference IDs with the Select all button and click on Delete.