AWS re:Post Knowledge Center Spotlight: Site-to-Site VPN

The AWS re:Post Knowledge Center is your one-stop-shop for authoritative, up-to-date guidance on using AWS services. This month, we're highlighting AWS Site-to-Site VPN, a fully-managed service that creates a secure connection between your data center or branch office and your AWS resources using IP Security (IPSec) tunnels. When using Site-to-Site VPN, you can connect to both your Amazon Virtual Private Clouds (Amazon VPC) as well as AWS Transit Gateway.

For globally distributed applications, the Accelerated Site-to-Site VPN option provides even greater performance by working with AWS Global Accelerator to intelligently route your traffic to the nearest AWS network endpoint with the best performance. Whether you're new to Site-to-Site VPN or an experienced user, the following Knowledge Center articles equip you with the skills and troubleshooting tips to get the most out of this highly available service.

Configuring your Site-to-Site VPN

A Site-to-Site VPN connection consists of:

• A virtual private gateway or a transit gateway.
• A customer gateway device.
• A customer gateway.

Learn how to configure your Site-to-Site VPN connection:

How do I configure an AWS Site-to-Site VPN?

How do I configure Site-to-Site VPN tunnel options?

How do I deactivate single tunnel notifications for my AWS Site-to-Site VPN?

How do I restrict access to Amazon VPC resources on my Site-to-Site VPN?

Troubleshooting connection errors

Unexpected errors can occur in Site-to-Site VPN for a variety of reasons. The following articles help you troubleshoot common Site-to-Site VPN connection errors:

Why is my AWS Site-to-Site VPN down?

Why is my AWS Site-to-Site VPN failing to establish connectivity?

How do I use the Site-to-Site VPN logs to check why my tunnel went down?

How do I troubleshoot Site-to-Site VPN tunnel inactivity, tunnel flapping, or tunnel down on my customer gateway device?

How do I troubleshoot low transfer speed on my Site-to-Site VPN?

How do I troubleshoot issues with traffic routing over Site-to-Site VPN?

How do I troubleshoot packet loss on my VPN connection?

How do I troubleshoot VPN tunnel connectivity to my Amazon VPC?

How do I troubleshoot intermittent connectivity issues with Amazon VPC when I'm using Site-to-Site VPN?

Why can't I connect to my VPC when using an AWS Site-to-Site VPN that terminates on a transit gateway?

How do I troubleshoot BGP connection issues over VPN?

How do I troubleshoot a failed BGP connection between Site-to-Site VPN and Direct Connect?

Why is IPsec/Phase 2 for AWS Site-to-Site VPN failing to establish a connection?

How do I troubleshoot connection problems between an AWS VPN endpoint and a policy-based VPN?

Related information

Have more questions about Site-to-Site VPN? Check out the re:Post Site-to-Site VPN knowledge base or ask your own question to get guidance from the AWS community.