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Amazon Elastic Compute Cloud
API Reference (API Version 2016-11-15)

CreateDefaultSubnet

Creates a default subnet with a size /20 IPv4 CIDR block in the specified Availability Zone in your default VPC. You can have only one default subnet per Availability Zone. For more information, see Creating a Default Subnet in the Amazon Virtual Private Cloud User Guide.

Request Parameters

The following parameters are for this specific action. For more information about required and optional parameters that are common to all actions, see Common Query Parameters.

AvailabilityZone

The Availability Zone in which to create the default subnet.

Type: String

Required: Yes

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.

Type: Boolean

Required: No

Response Elements

The following elements are returned by the service.

requestId

The ID of the request.

Type: String

subnet

Information about the subnet.

Type: Subnet object

Errors

For information about the errors that are common to all actions, see Common Client Errors.

Example

Example

This example creates a default subnet in Availability Zone us-east-2a.

Sample Request

https://ec2.us-east-2.amazonaws.com/?Action=CreateDefaultSubnet &AvailabilityZone=us-east-2a &AUTHPARAMS

Sample Response

<CreateDefaultSubnetResponse xmlns="http://ec2.amazonaws.com/doc/2016-11-15/"> <requestId>12e2fb2e-e566-488a-926d-4655example</requestId> <subnet> <assignIpv6AddressOnCreation>false</assignIpv6AddressOnCreation> <availabilityZone>us-east-2a</availabilityZone> <availableIpAddressCount>4091</availableIpAddressCount> <cidrBlock>172.31.32.0/20</cidrBlock> <defaultForAz>true</defaultForAz> <ipv6CidrBlockAssociationSet/> <mapPublicIpOnLaunch>true</mapPublicIpOnLaunch> <state>available</state> <subnetId>subnet-111f7123</subnetId> <tagSet/> <vpcId>vpc-8eaaeabc</vpcId> </subnet> </CreateDefaultSubnetResponse>

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: