|NAT Gateway||NAT Gateway is an enterprise-class public network gateway that provides Internet proxy services (SNAT and DNAT) with up to 10 Gbps forwarding capability. It also features in high availability in regions and disaster recovery across zones.|
|DNAT table||A DNAT table is a configuration table used for configuring DNAT. You can map a public IP in a NAT bandwidth package to an ECS instance. DNAT supports IP mapping and port mapping.|
|SNAT table||An SNAT table is a configuration table used for configuring SNAT. You can add an SNAT entry to enable ECS instances in a VSwitch to access the Internet by using a specified public IP.|
|EIP||Elastic IP Address (EIP) is a public IP address resource that can be independently purchased and owned. You can bind EIP to an ECS instance of the VPC network, a private SLB instance of the VPC network, and a NAT Gateway.|
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