AWS SDK Version 4 for .NET
API Reference

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Container for the parameters to the CreateNatGateway operation. Creates a NAT gateway in the specified subnet. This action creates a network interface in the specified subnet with a private IP address from the IP address range of the subnet. You can create either a public NAT gateway or a private NAT gateway.

With a public NAT gateway, internet-bound traffic from a private subnet can be routed to the NAT gateway, so that instances in a private subnet can connect to the internet.

With a private NAT gateway, private communication is routed across VPCs and on-premises networks through a transit gateway or virtual private gateway. Common use cases include running large workloads behind a small pool of allowlisted IPv4 addresses, preserving private IPv4 addresses, and communicating between overlapping networks.

For more information, see NAT gateways in the Amazon VPC User Guide.

When you create a public NAT gateway and assign it an EIP or secondary EIPs, the network border group of the EIPs must match the network border group of the Availability Zone (AZ) that the public NAT gateway is in. If it's not the same, the NAT gateway will fail to launch. You can see the network border group for the subnet's AZ by viewing the details of the subnet. Similarly, you can view the network border group of an EIP by viewing the details of the EIP address. For more information about network border groups and EIPs, see Allocate an Elastic IP address in the Amazon VPC User Guide.

Inheritance Hierarchy

System.Object
  Amazon.Runtime.AmazonWebServiceRequest
    Amazon.EC2.AmazonEC2Request
      Amazon.EC2.Model.CreateNatGatewayRequest

Namespace: Amazon.EC2.Model
Assembly: AWSSDK.EC2.dll
Version: 3.x.y.z

Syntax

C#
public class CreateNatGatewayRequest : AmazonEC2Request
         IAmazonWebServiceRequest

The CreateNatGatewayRequest type exposes the following members

Constructors

NameDescription
Public Method CreateNatGatewayRequest()

Properties

NameTypeDescription
Public Property AllocationId System.String

Gets and sets the property AllocationId.

[Public NAT gateways only] The allocation ID of an Elastic IP address to associate with the NAT gateway. You cannot specify an Elastic IP address with a private NAT gateway. If the Elastic IP address is associated with another resource, you must first disassociate it.

Public Property ClientToken System.String

Gets and sets the property ClientToken.

Unique, case-sensitive identifier that you provide to ensure the idempotency of the request. For more information, see Ensuring idempotency.

Constraint: Maximum 64 ASCII characters.

Public Property ConnectivityType Amazon.EC2.ConnectivityType

Gets and sets the property ConnectivityType.

Indicates whether the NAT gateway supports public or private connectivity. The default is public connectivity.

Public Property DryRun System.Nullable<System.Boolean>

Gets and sets the property DryRun.

Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation. Otherwise, it is UnauthorizedOperation.

Public Property PrivateIpAddress System.String

Gets and sets the property PrivateIpAddress.

The private IPv4 address to assign to the NAT gateway. If you don't provide an address, a private IPv4 address will be automatically assigned.

Public Property SecondaryAllocationIds System.Collections.Generic.List<System.String>

Gets and sets the property SecondaryAllocationIds.

Secondary EIP allocation IDs. For more information, see Create a NAT gateway in the Amazon VPC User Guide.

Starting with version 4 of the SDK this property will default to null. If no data for this property is returned from the service the property will also be null. This was changed to improve performance and allow the SDK and caller to distinguish between a property not set or a property being empty to clear out a value. To retain the previous SDK behavior set the AWSConfigs.InitializeCollections static property to true.

Public Property SecondaryPrivateIpAddressCount System.Nullable<System.Int32>

Gets and sets the property SecondaryPrivateIpAddressCount.

[Private NAT gateway only] The number of secondary private IPv4 addresses you want to assign to the NAT gateway. For more information about secondary addresses, see Create a NAT gateway in the Amazon VPC User Guide.

Public Property SecondaryPrivateIpAddresses System.Collections.Generic.List<System.String>

Gets and sets the property SecondaryPrivateIpAddresses.

Secondary private IPv4 addresses. For more information about secondary addresses, see Create a NAT gateway in the Amazon VPC User Guide.

Starting with version 4 of the SDK this property will default to null. If no data for this property is returned from the service the property will also be null. This was changed to improve performance and allow the SDK and caller to distinguish between a property not set or a property being empty to clear out a value. To retain the previous SDK behavior set the AWSConfigs.InitializeCollections static property to true.

Public Property SubnetId System.String

Gets and sets the property SubnetId.

The ID of the subnet in which to create the NAT gateway.

Public Property TagSpecifications System.Collections.Generic.List<Amazon.EC2.Model.TagSpecification>

Gets and sets the property TagSpecifications.

The tags to assign to the NAT gateway.

Starting with version 4 of the SDK this property will default to null. If no data for this property is returned from the service the property will also be null. This was changed to improve performance and allow the SDK and caller to distinguish between a property not set or a property being empty to clear out a value. To retain the previous SDK behavior set the AWSConfigs.InitializeCollections static property to true.

Examples

This example creates a NAT gateway in subnet subnet-1a2b3c4d and associates an Elastic IP address with the allocation ID eipalloc-37fc1a52 with the NAT gateway.

To create a NAT gateway


var client = new AmazonEC2Client();
var response = client.CreateNatGateway(new CreateNatGatewayRequest 
{
    AllocationId = "eipalloc-37fc1a52",
    SubnetId = "subnet-1a2b3c4d"
});

NatGateway natGateway = response.NatGateway;

            

Version Information

.NET:
Supported in: 8.0 and newer, Core 3.1

.NET Standard:
Supported in: 2.0

.NET Framework:
Supported in: 4.7.2 and newer