AWS
Networking
intermediate
Hybrid VPN Connectivity — AWS Architecture Template
On-premises networks attach via site-to-site VPN to a Transit Gateway that routes into app and data VPCs with hybrid DNS.
Why this architecture works
- Terminating VPN on Transit Gateway (not per-VPC) means one tunnel set serves every VPC
- Separate app and data VPCs let you expose application subnets to on-prem while keeping databases restricted
- Route 53 resolver endpoints give on-prem and cloud workloads consistent name resolution both ways
- Non-overlapping CIDR planning up front avoids the NAT contortions that plague hybrid retrofits
- Tunnel-state and bandwidth alarms in CloudWatch detect degraded VPN paths before users report outages
What's inside (7 resources)
VPN Transit Hub
aws-transit-gateway
Hybrid DNS Resolver
aws-route53
App VPC
aws-vpc
Data VPC
aws-vpc
App Servers
aws-ec2
Database
aws-rds
Tunnel Alarms
aws-cloudwatch
From template to running infrastructure
- Open this template in the CloudForge visual designer (free account, no credit card).
- Customize resources, names, and connections on the drag-and-drop canvas — or ask Vani, the AI architect, to adapt it.
- Generate production-ready Terraform or CloudFormation in one click.
- Review the plan diff and security scan, then deploy with human approval.