AWS: How To Setup A Site-to-Site VPN (Start to Finish)
In this video, I will show you how you can create your very own S2S VPN using Strongswan on AWS. By the end of the video, you should now be able to create a S2S VPN on AWS while simulating an on-prem site.
If you don't need to simulate an on-prem site and already have a Firewall (Cisco, Palo Alto, Juniper, etc.) just download the configuration file and make sure that the public IP is used for the CGW and that's all you need!