Site-to-Site VPN connection tunnels should be online

Description

A VPN tunnel is an encrypted pathway that allows data to move securely between the customer network and AWS within an AWS Site-to-Site VPN connection. Each VPN connection includes two tunnels, which can operate simultaneously to ensure high availability. Keeping both VPN tunnels active is essential for maintaining a secure and resilient connection between an AWS VPC and your remote network.

Remediation

For instructions on configuring VPN tunnel options, refer to the Modifying Site-to-Site VPN tunnel options section in the AWS Site-to-Site VPN User Guide.