Description
AWS Client VPN is a fully-managed remote access VPN service designed to securely connect remote users to AWS and on-premises resources. Built for organizations of any size, it eliminates the complexity of provisioning and managing traditional VPN infrastructure.
Key Features
- Fully Managed — No hardware to deploy or software to maintain. AWS handles scaling, availability, and patching.
- Elastic Scaling — Automatically scales up or down based on the number of connected users, so you only pay for what you use.
- Advanced Authentication — Integrates with Active Directory, SAML-based identity providers, and multi-factor authentication (MFA) for strong access control.
- OpenVPN Protocol — Uses the industry-standard OpenVPN protocol, supported natively by the AWS Client VPN desktop application.
- Seamless Integration — Works with your AWS VPCs and on-premises networks via standard VPN connections.
Common Use Cases
- Remote Workforce Access — Quickly enable secure remote access for employees, contractors, and partners working from any location.
- Application Migration — Allow users to access applications the same way before, during, and after migration to AWS, minimizing disruption.
- IoT Device Connectivity — Securely connect IoT devices to AWS resources without exposing them to the public internet.
- Integration with MDM — Combine with mobile device management (MDM) systems for granular endpoint compliance policies.
AWS Client VPN includes a free desktop client application (available for Windows, macOS, and Linux) that makes it easy for end users to connect with minimal setup.
Highlights
Pros
- Automatically scales up or down based on the number of connected users without any manual intervention
- Deeply integrates with AWS services such as VPC, Transit Gateway, and Directory Service for seamless cloud connectivity
- Supports full IPv6 and dual-stack endpoints for both client connections and VPC resource access
- Fully managed by AWS — eliminates the need to deploy, patch, or maintain any VPN server infrastructure
- Supports multiple authentication methods including Active Directory, SAML 2.0 federated SSO, and certificate-based mutual authentication
- Provides a self-service portal where end users can independently download the VPN client and their configuration file
Cons
- The client CIDR range is immutable after endpoint creation, requiring careful upfront planning and potential redeployment if mis-sized
- Authorization rules and route table entries must be applied in a specific order, with no built-in validation to prevent misconfiguration
- Does not support overlapping CIDR ranges, causing routing failures if the client CIDR block conflicts with VPC or on-premises CIDRs
- Each user connection has a maximum baseline bandwidth of 50Mbps, which can bottleneck performance for data-intensive workloads
- Hub-and-spoke architecture introduces higher latency compared to peer-to-peer mesh VPN solutions