ModifySubnetAttributeRequest Class

Container for the parameters to the ModifySubnetAttribute operation. Modifies a subnet attribute. You can only modify one attribute at a time.

Use this action to modify subnets on Amazon Web Services Outposts.

To modify a subnet on an Outpost rack, set both MapCustomerOwnedIpOnLaunch and CustomerOwnedIpv4Pool. These two parameters act as a single attribute.
To modify a subnet on an Outpost server, set either EnableLniAtDeviceIndex or DisableLniAtDeviceIndex.

For more information about Amazon Web Services Outposts, see the following:

Inheritance Hierarchy

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

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

Syntax

public class ModifySubnetAttributeRequest : AmazonEC2Request
         IAmazonWebServiceRequest

The ModifySubnetAttributeRequest type exposes the following members

Constructors

	Name	Description
	ModifySubnetAttributeRequest()

Properties

Name	Type	Description
AssignIpv6AddressOnCreation	System.Boolean	Gets and sets the property AssignIpv6AddressOnCreation. Specify `true` to indicate that network interfaces created in the specified subnet should be assigned an IPv6 address. This includes a network interface that's created when launching an instance into the subnet (the instance therefore receives an IPv6 address). If you enable the IPv6 addressing feature for your subnet, your network interface or instance only receives an IPv6 address if it's created using version `2016-11-15` or later of the Amazon EC2 API.
CustomerOwnedIpv4Pool	System.String	Gets and sets the property CustomerOwnedIpv4Pool. The customer-owned IPv4 address pool associated with the subnet. You must set this value when you specify `true` for `MapCustomerOwnedIpOnLaunch`.
DisableLniAtDeviceIndex	System.Boolean	Gets and sets the property DisableLniAtDeviceIndex. Specify `true` to indicate that local network interfaces at the current position should be disabled.
EnableDns64	System.Boolean	Gets and sets the property EnableDns64. Indicates whether DNS queries made to the Amazon-provided DNS Resolver in this subnet should return synthetic IPv6 addresses for IPv4-only destinations. You must first configure a NAT gateway in a public subnet (separate from the subnet containing the IPv6-only workloads). For example, the subnet containing the NAT gateway should have a `0.0.0.0/0` route pointing to the internet gateway. For more information, see Configure DNS64 and NAT64 in the Amazon VPC User Guide.
EnableLniAtDeviceIndex	System.Int32	Gets and sets the property EnableLniAtDeviceIndex. Indicates the device position for local network interfaces in this subnet. For example, `1` indicates local network interfaces in this subnet are the secondary network interface (eth1). A local network interface cannot be the primary network interface (eth0).
EnableResourceNameDnsAAAARecordOnLaunch	System.Boolean	Gets and sets the property EnableResourceNameDnsAAAARecordOnLaunch. Indicates whether to respond to DNS queries for instance hostnames with DNS AAAA records.
EnableResourceNameDnsARecordOnLaunch	System.Boolean	Gets and sets the property EnableResourceNameDnsARecordOnLaunch. Indicates whether to respond to DNS queries for instance hostnames with DNS A records.
MapCustomerOwnedIpOnLaunch	System.Boolean	Gets and sets the property MapCustomerOwnedIpOnLaunch. Specify `true` to indicate that network interfaces attached to instances created in the specified subnet should be assigned a customer-owned IPv4 address. When this value is `true`, you must specify the customer-owned IP pool using `CustomerOwnedIpv4Pool`.
MapPublicIpOnLaunch	System.Boolean	Gets and sets the property MapPublicIpOnLaunch. Specify `true` to indicate that network interfaces attached to instances created in the specified subnet should be assigned a public IPv4 address. Amazon Web Services charges for all public IPv4 addresses, including public IPv4 addresses associated with running instances and Elastic IP addresses. For more information, see the Public IPv4 Address tab on the Amazon VPC pricing page.
PrivateDnsHostnameTypeOnLaunch	Amazon.EC2.HostnameType	Gets and sets the property PrivateDnsHostnameTypeOnLaunch. The type of hostname to assign to instances in the subnet at launch. For IPv4-only and dual-stack (IPv4 and IPv6) subnets, an instance DNS name can be based on the instance IPv4 address (ip-name) or the instance ID (resource-name). For IPv6 only subnets, an instance DNS name must be based on the instance ID (resource-name).
SubnetId	System.String	Gets and sets the property SubnetId. The ID of the subnet.

Examples

This example modifies the specified subnet so that all instances launched into this subnet are assigned a public IP address.

To change a subnet's public IP addressing behavior


var client = new AmazonEC2Client();
var response = client.ModifySubnetAttribute(new ModifySubnetAttributeRequest 
{
    MapPublicIpOnLaunch = jsondata object,
    SubnetId = "subnet-1a2b3c4d"
});

Version Information

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

.NET Standard:
Supported in: 2.0

.NET Framework:
Supported in: 4.5 and newer, 3.5