Introduction

Updated on 2023-04-06 GMT+08:00

Scenario

If the VPC of your backend server is different from that of your gateway, how do you configure cross-VPC interconnection? This section uses Elastic Load Balance (ELB) as an example to describe how to expose services in a private network load balancer using APIG.

Solution Architecture

Figure 1 Exposing backend services across VPCs

Advantages

Without modifying the existing network architecture, you can have all requests directly forwarded to your backend server through flexible configuration.

Restrictions

VPC 1, VPC 2, and the VPC CIDR block of your gateway cannot overlap. For details about the VPC CIDR block planning of the gateway, see Table 2.

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