AWS VPN facilitates secure links between on-premises networks and AWS Virtual Private Clouds (VPCs) via IPsec VPN tunnels, ensuring a robust connection. Each VPN connection is designed with dual tunnels to enhance availability, terminating in distinct availability zones for added resilience. This service accommodates both static and dynamic routing through BGP, while also providing customizable options for tunnel configurations, such as inside tunnel IP addresses, pre-shared keys, and BGP Autonomous System Numbers (ASNs). The Accelerated Site-to-Site VPN option utilizes AWS Global Accelerator, optimizing traffic routing through the closest AWS edge location to decrease latency and jitter for an improved user experience. Additionally, AWS Client VPN is a fully managed and elastic VPN service, enabling users to securely connect to AWS and on-premises resources from anywhere using an OpenVPN-based client. This service supports various authentication methods, including Active Directory, mutual certificate authentication, and SAML-based federated authentication, ensuring flexibility and security for users. Ultimately, AWS's diverse VPN offerings cater to various connectivity needs while prioritizing security and performance.