To manage alert noise, you can enable or disable the throttling of policy violation alerts for IPS devices. This helps you focus on high-priority alerts and make a decision whether NDR has to suppress or retains alerts based on the criticality of the target asset.
Enable/Disable alert throttling using CLI
Log into the NDR CLI using a terminal window or SSH client:
Using the SSH protocol, log into the appliance with management interface's IP address or hostname.
$ ssh npadmin@<NDR IP address>Enter the password when prompted. The
hostname > promptis displayed after you have logged in.
Enter privileged mode on the NDR CLI.
npadmin@hostname> enable
Enter the
npadminpassword, when prompted. The password can be 5 to 24 characters long.[sudo] password for npadmin: <password>
Enter configuration mode.
npadmin@hostname# configure system
The prompt changes to
npadmin@hostname(config)#on the terminal indicating that the configuration mode is enabled.Type
policy-violation-alert-throttlingat the terminal and pressEnter.The Configure policy violation alert throttling options are displayed.
Based on your needs, enable or disable throttling.
If you enable throttling (default): All policy violation alerts gets suppressed for non-critical assets but continues to show up for critical assets. This is the recommended setting for reducing alert noise.
If you disable throttling: All policy violation alerts from the IPS device is displayed, regardless of the target asset's criticality.
Type
Xto save the configuration and exit.