Internet Gateway Overview

After a global EIP is bound to an ECS, an internet gateway is required to connect the VPC of the ECS to the global EIP so that the ECS can access the Internet through the global EIP. Before binding an ECS, you need to create an internet gateway. Internet gateways are free of charge.

When you bind an internet gateway to a global EIP of an ECS, the system automatically lists the internet gateway of the VPC that the ECS belongs to, if there is one.

• If a global EIP is bound to a load balancer, you do not need to create an internet gateway for the VPC that the load balancer belongs to.
• Internet gateway is supported in CN South-Guangzhou.

Figure 1 Global EIP architecture