The process of creating a VPN Connection from the AWS VPN page in the firewall GUI also makes changes to the configuration on AWS. Using the AWS Console, under the VPC Dashboard, view VPN connections. Using the VPC ID as a filter, find the VPN connection that was created.
The customer gateway, the endpoint at the firewall, and the IP address specified when first creating the VPN connection can also be viewed on the AWS Console. Navigate to the Customer Gateways page, under the VPC Dashboard.