Product Advantages

Product Advantages

  • High Performance

    An extra-large NAT gateway can handle millions of concurrent connections to a single destination address and port.
    An extra-large NAT gateway can handle millions of concurrent connections to a single destination address and port.
  • Flexible Deployment

    Instances in different AZs can share the same public NAT gateway for Internet access or the same private NAT gateway for communication with an on-premises data center or a remote VPC.
    Instances in different AZs can share the same public NAT gateway for Internet access or the same private NAT gateway for communication with an on-premises data center or a remote VPC.
  • Ease of Use

    Private NAT gateways allow communication between your on-premises data center and your VPC without the need to change existing networks or IP addresses.
    Private NAT gateways allow communication between your on-premises data center and your VPC without the need to change existing networks or IP addresses.
  • Cost-Effectiveness

    Multiple instances can share the same EIP and the associated bandwidth resources for Internet access.
    Multiple instances can share the same EIP and the associated bandwidth resources for Internet access.

Application Scenarios

  • Safer Internet Access

  • Access from Internet

  • High-Speed Internet Access

  • Using Multiple NAT Gateways Together

  • Unified Network Management

Safer Internet Access

Safer Internet Access

If your servers in a VPC require Internet access, you can use SNAT supported by public NAT gateways to let the servers share an EIP to access the Internet without exposing their own IP addresses.

Advantages

Flexible Deployment

NAT gateways can be shared across subnets and AZs.

Flexible Choice of Gateway Types

You can choose from a range of NAT gateway types, each with specifications designed for different needs.

Cost-Effectiveness

Multiple instances can share the same EIP.

Related Services

Access from Internet

Access from Internet

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.

Advantages

Flexible Deployment

NAT gateways can be shared across subnets and across AZs.

Cost-Effectiveness

Multiple instances can share the same EIP.

Related Services

High-Speed Internet Access

High-Speed Internet Access

If a large number of servers that connect to a VPC through Direct Connect need secure, high-speed Internet access or need to provide services accessible from the Internet, you can configure SNAT and DNAT on public NAT gateways to allow multiple servers to share EIPs. This way, much fewer EIPs are needed.

Advantages

Fast, Stable Access to the Internet

Used in conjunction with Direct Connect, NAT gateways provide your servers with fast, stable access to the Internet.

Related Services

Using Multiple NAT Gateways Together

Using Multiple NAT Gateways Together

If a single NAT gateway becomes a performance bottleneck, you use multiple NAT gateways together. Just create multiple route tables in your VPC to direct the traffic from different VPC subnets to the NAT gateways you configure. 

Related Services

Unified Network Management

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. It makes it safer and less expensive to migrate services to the cloud.

Advantages

No Need for Network Changes

A private NAT gateway translates the IP address of a server in the local VPC to a private IP address in the transit VPC. This second IP address is used for communicating with the on-premises data center or a remote VPC. When migrating services from your data center to the cloud, you can keep the on-premises networks unchanged.

Overlapping IP Addresses Allowed

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

Related Services

Functions

Functions

  • Outstanding Performance

    An extra-large NAT gateway can support millions of concurrent connections.
    An extra-large NAT gateway can support millions of concurrent connections.
  • Flexible Specifications

    You can choose from a range of NAT gateway types, each with specifications designed for different needs.
    You can choose from a range of NAT gateway types, each with specifications designed for different needs.
  • Flexible Billing

    You pay for the days of service usage, EIPs, or bandwidths, whichever way is suitable for you.
    You pay for the days of service usage, EIPs, or bandwidths, whichever way is suitable for you.

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