Basic Information
| Field | Details |
|---|---|
| English name | VPN Components |
| Full name | Virtual Private Gateway & Customer Gateway |
| Chinese description | VPN 组件：虚拟私有网关与客户网关 |
| Japanese description | VPN コンポーネント（仮想プライベートゲートウェイ／カスタマーゲートウェイ） |
| Exam frequency | ⭐⭐⭐⭐ |
| Often confused with | Client VPN / Site-to-Site VPN / Direct Connect |
In one sentence
A Site-to-Site VPN connects the AWS-side gateway with a customer-side device definition through redundant tunnels.
Key points
- Virtual Private Gateway attaches to a VPC and represents the AWS side of a traditional VPN design.
- Customer Gateway represents the customer router and its public IP or BGP information.
- The physical customer router and the AWS Customer Gateway resource are not the same thing.
Exam takeaway
Both tunnels and routing configuration must be used correctly to achieve redundancy.