Securing VPC Peering and Transit Gateway
Connect networks together without opening unintended paths.
Connecting Networks Safely
Workloads often span multiple VPCs that must communicate. AWS offers two main ways to connect them: VPC peering and Transit Gateway. Each creates new paths between networks, so each must be configured carefully to avoid opening more access than intended.
What VPC Peering Is
A VPC peering connection links two VPCs so resources can communicate using private IPs as if on the same network. Peering is a one-to-one relationship and uses the AWS backbone, never the public internet. Traffic stays private, but you still control reachability with routes and security rules.
All lessons in this course
- Public and Private Subnet Design
- Internet, NAT, and Egress Gateways
- Route Tables as Security Controls
- Securing VPC Peering and Transit Gateway