Configure an IKE crypto profile using the IKE Parameters from the Forcepoint ONE SSE.
Steps
Navigate to Network > Network Profiles > IKE Crypto > Add.
Configure the recommended IKE settings as shown below.
You can obtain the IKE Parameters from Forcepoint ONE SSE by navigating to the Analyze > Tunnels > Setup Info > Supported Settings section after configuring the IPsec tunnels.
To save the IKE crypto profile, click OK.
Result
You have an IKE crypto profile created. In this example, FOne_IKE_Profile