NAT gateways are enterprise-class gateways that provide the Source Network Address Translation (SNAT) and Destination Network Address Translation (DNAT) features. Each NAT gateway provides a throughput capacity of up to 100 Gbit/s. NAT gateways also support cross-zone disaster recovery.
|SNAT||SNAT allows Elastic Compute Service (ECS) instances that are deployed in a virtual private cloud (VPC) to access the Internet when no public IP address is associated with these ECS instances.||Use SNAT to enable Internet access|
|DNAT||DNAT maps the EIPs of a NAT gateway to ECS instances. This way, the ECS instances can receive requests from the Internet.||Allow ECS instances to provide Internet-facing services by using DNAT|