The all-new enhanced NAT gateways offer high performance and automatic elasticity with extensive O&M features.Learn More
You can upgrade standard NAT gateways enhanced NAT gateways for free.Learn More
Improved accuracy of NAT gateway billing based on usage (CU capacity)Learn More
NAT Gateway offers high performance, automatic elasticity, and flexible billing options with extensive O&M features.
A NAT gateway supports tens of Gbit/s of throughput and millions of connections. This meets the requirements of large-scale workloads migrated to the cloud.
Provides reliable gateway services that support disaster recovery across data centers with automatic elasticity as the business fluctuates
Supports bandwidth sharing among multiple VPCs and ECS instances to reduce bandwidth costs significantly
The graphic console makes it easy to create custom NAT rules and provides more than 22 monitoring metrics to facilitate operations and maintenance.
You can create a NAT gateway to enable multiple instances within a VPC to communicate with the Internet. You can create custom SNAT and DNAT rules to help you use network resources flexibly and build a hybrid cloud network. The service provides value-added features, such as multiple IP addresses, shared Internet bandwidth, and extensive monitoring metrics.
For cloud-deployed services that require Internet access, usually, one ECS instance is associated with one EIP. The EIP cannot handle large numbers of requests when the workload of the ECS instance spikes. In this case, more EIPs and SNAT rules are required.
A NAT gateway allows you to add multiple EIPs to a SNAT IP address pool. When the ECS instance initiates an Internet connection request, the ECS instance randomly selects an EIP from the SNAT IP address pool to access the Internet.
Supports a large number of SNAT connections
Supports up to 2 million connections and allows you to expand the capacity to 10 million connections
Supports a large number of new SNAT connections
Supports up to 100,000 new connections and allows you to expand the capacity to 1 million new connections to meet the requirements of large-scale workloads
Virtual Private Cloud
Helps you build an isolated network environment on Alibaba Cloud.Learn More
When an enterprise expands, more than one ECS instance is necessary to provide external services. Each ECS instance is deployed with an application service, which provides services to the Internet. The ECS instances have different bandwidth requirements at different times. This may waste resources if you purchase bandwidth resources separately for each ECS instance.
In this case, you can purchase a NAT gateway to enable bandwidth sharing with multiple applications to save bandwidth costs.
Supports high throughput capacity
Supports 5 Gbit/s of throughput and allows you to expand the capacity to 100 Gbit/s of throughput to meet the requirements of large-scale Internet services
Provides flexible billing options
Shared bandwidth supports flexible billing options to reduce costs further
When a business expands, different workloads deployed in the same VPC must be securely isolated from one another, and their access to the Internet must be controlled.
In this case, you can create multiple enhanced NAT gateways in the VPC to forward traffic to different destinations. You can also create different access control policies for the NAT gateways to precisely manage access to the Internet.
Supports flexible and fine-grained traffic management
Supports traffic management of individual vSwitches and ECS instances and provides various traffic monitoring metrics.
Supports multiple NAT gateways in one VPC
Supports up to five NAT gateways in one VPC. You can submit a ticket to increase the quota.
If an ECS instance in a VPC is assigned a public IP address and other ECS instances in the VPC access the Internet using the SNAT feature of NAT Gateway, the ECS instances in the VPC use different IP addresses to access the Internet.
In this case, you can create a NAT gateway for the ECS instances so they can use the same public IP address to access the Internet. The ECS instances that do not have public IP addresses in the VPC can access the Internet using SNAT.
Easy to Use
NAT Gateway provides detailed configuration guides to help you set up Internet access using one public IP address.
Supports a variety of scenarios
You can configure NAT Gateway to access the Internet using the same public IP address for ECS instances associated with EIPs or ECS instances with IP address mapping configured using DNAT.
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