This is the new *CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [AWS CloudFormation User Guide](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/Welcome.html).
# AWS::EC2::LaunchTemplate Ipv6Add

Specifies an IPv6 address in an Amazon EC2 launch template.
`Ipv6Add` is a property of [AWS::EC2::LaunchTemplate NetworkInterface](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ec2-launchtemplate-networkinterface.html).
## Syntax

To declare this entity in your CloudFormation template, use the following syntax:
### JSON

```
{
 "[Ipv6Address](#cfn-ec2-launchtemplate-ipv6add-ipv6address)" : {{String}}
}
```
### YAML

```
 [Ipv6Address](#cfn-ec2-launchtemplate-ipv6add-ipv6address): {{String}}
```
## Properties

`Ipv6Address` 
One or more specific IPv6 addresses from the IPv6 CIDR block range of your subnet. You can't use this option if you're specifying a number of IPv6 addresses. 
*Required*: No 
*Type*: String 
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)
## See also

+ [ InstanceIpv6AddressRequest](https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_InstanceIpv6AddressRequest.html) in the *Amazon EC2 API Reference*
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