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 PrivateIpAdd

Specifies a secondary private IPv4 address for a network interface.
`PrivateIpAdd` 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

```
{
 "[Primary](#cfn-ec2-launchtemplate-privateipadd-primary)" : {{Boolean}},
 "[PrivateIpAddress](#cfn-ec2-launchtemplate-privateipadd-privateipaddress)" : {{String}}
}
```
### YAML

```
 [Primary](#cfn-ec2-launchtemplate-privateipadd-primary): {{Boolean}}
 [PrivateIpAddress](#cfn-ec2-launchtemplate-privateipadd-privateipaddress): {{String}}
```
## Properties

`Primary` 
Indicates whether the private IPv4 address is the primary private IPv4 address. Only one IPv4 address can be designated as primary. 
*Required*: No 
*Type*: Boolean 
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)
`PrivateIpAddress` 
The private IPv4 address. 
*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

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