# Create ECA Configuration elements

ECA Configuration elements contain the Trusted Certificate Authority element used to secure communication between the Security Engine and the Forcepoint One Endpoint clients.

## Before you begin

Create or use a certificate authority from the domain where the endpoint clients are located, then import the CA to the SMC as a Trusted Certificate Authority element. For more information, see Knowledge Base article 14099.

##

For more details about the product and how to configure features, click Help or press F1.

## Steps

1. Select Engine.
2. Browse to Other Elements > Engine Properties > ECA Configurations.
3. Right-click ECA Configurations, then select New ECA Configuration.
4. Configure the settings, then click OK.
   Note: If Advertise Engine's Contact Address to ECA Clients is selected, the Security Engine can send ICMP or ICMPv6 discovery messages to endpoint clients that are not aware that the contact address for the Security Engine has changed or that the Security Engine can receive Forcepoint One Endpoint metadata. The ICMP message is Destination Unreachable, and the type is Communication Administratively Prohibited.

## Next steps

Enable Forcepoint Endpoint Context Agent (ECA) on the Security Engines, and select the ECA Configuration element that you created.

## ECA Configuration Properties dialog box

Use this dialog box to define settings for integrating Forcepoint One Endpoint with Forcepoint Network Security Platform.

Option | Definition
--- | ---
Name | The name of the element.
ECA Configuration CAs | The Trusted Certificate Authority elements that are used to secure communication between the Security Engine and the Forcepoint One Endpoint clients. Click Add to add an element to the table, or Remove to remove the selected element.
Advertise Engine's Contact Address to ECA Clients | When selected, the Security Engine can send ICMP or ICMPv6 discovery messages to endpoint clients that are not aware that the contact address for the Security Engine has changed or that the Security Engine can receive Forcepoint One Endpoint metadata. The ICMP message is Destination Unreachable, and the type is Communication Administratively Prohibited. If the Security Engine detects connections from networks that contain endpoint clients and there is a match for an Access rule that requires Forcepoint One Endpoint metadata, but the connections do not include Forcepoint One Endpoint metadata information, the Security Engine sends ICMP or ICMPv6 discovery messages to the network, advertising the contact address for the Engine. The messages contain the shared secret that is also defined in the XML configuration file that is deployed to the endpoint clients. If a client responds and successfully authenticates, the Security Engine sends the latest XML configuration file to the client.
Category (Optional) | Includes the element in predefined categories. Click Select to select a category.
Comment (Optional) | A comment for your own reference.