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.

The action (Analyze / Block) applied to each mode can be changed by double-clicking in the corresponding action column.

Advanced properties

Prohibited Reference IDs

This list makes it possible to block additional NTP Reference IDs (LOCL, LCL, etc.) by specifying their names. It is possible to Add or Delete elements to or from this list by clicking on the relevant buttons.