What's NAT Gateway?

  • Excellent Performance

    An extra-large NAT gateway supports millions of concurrent connections and up to 20 Gbit/s of bandwidth to each destination address and port.

    An extra-large NAT gateway supports millions of concurrent connections and up to 20 Gbit/s of bandwidth to each destination address and port.

  • Flexible Deployment

    Instances in different AZs share a public NAT gateway to the Internet access or a private NAT gateway to an on-premises data center or remote VPC.

    Instances in different AZs share a public NAT gateway to the Internet access or a private NAT gateway to an on-premises data center or remote VPC.

  • Highly Available

    NAT Gateway is designed to automate disaster recovery and cluster migration across availability zones, so your services do not stop running.

    NAT Gateway is designed to automate disaster recovery and cluster migration across availability zones, so your services do not stop running.

  • Pay Only for What You Need

    Stay secure at pay-per-use pricing while saving on extra EIPs and bandwidth resources for Internet access.

    Stay secure at pay-per-use pricing while saving on extra EIPs and bandwidth resources for Internet access.

Use Cases

Safer Internet Access

For servers in a VPC requiring Internet access, use SNAT supported by public NAT gateways to let the servers share an EIP while hiding their own IP addresses.

Advantages

  • Flexible Deployment

    NAT gateways can be shared across subnets and AZs.

  • Flexible Choice of Gateway Types

    Choose from a range of specifications designed for different needs.

  • Cost-Effectiveness

    Multiple instances share the same EIP to keep costs down.

Related Services

Access from the Internet

Simply define port forwarding in DNAT rules so a public NAT gateway allows your instances to provide Internet-accessible services.

Advantages

  • Flexible Deployment

    NAT gateways can be shared across subnets and AZs.

  • Cost-Effectiveness

    Multiple instances share the same EIP, so fewer EIPs are needed.

Related Services

High-Speed, Stable Internet Access

For on-premises servers connecting to a VPC through Direct Connect, configure SNAT and DNAT rules on public NAT gateways to allow the servers to share EIPs.

Advantages

  • Speed and Stability

    NAT gateways work in conjunction with Direct Connect to give your on-premises servers fast, stable access to the Internet.

Related Services

Higher Performance with Multiple Gateways

If a single NAT gateway bottlenecks your services, use multiple ones. Simply create multiple route tables in your VPC to direct traffic from different VPC subnets to the NAT gateways you configure.

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Unified Network Management

A private NAT gateway allows for communication between a VPC and an on-premises data center without needing to change your on-premises networks. This makes it safer and less expensive to migrate services to the cloud.

Advantages

  • No Need for Network Changes

    A private NAT gateway keeps communications clear of address conflicts thanks to a transit IP address, so your local VPC works seamlessly with your on-premises data center or a remote VPC.

  • Overlapping IP Addresses Allowed

    Two private NAT gateways can perform DNAT for the source and destination networks separately, allowing communication between overlapping networks.

Related Services

Why NAT Gateway?

Privacy for Peace of Mind

Privacy for Peace of Mind

Public NAT gateways shield your cloud servers by letting them share an EIP instead of exposing their own IP addresses.

Legacy Networks Preserved

Legacy Networks Preserved

Private NAT gateways let you keep cloud migration simple by maintaining the same network even with overlapping CIDR blocks in your on-premises network.

DNAT Access Control

DNAT Access Control

By defining port forwarding in DNAT rules, you can use a public NAT gateway to allow your instances to provide Internet-accessible services with much fewer EIPs.

Access Acceleration in Hybrid Clouds

Access Acceleration in Hybrid Clouds

On-premises servers connecting to Huawei Cloud through Direct Connect can use the EIP bound to a NAT gateway rule to quickly access Internet resources.

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