AWS::EC2::TransitGatewayVpcAttachment Options - AWS CloudFormation
SyntaxProperties

AWS::EC2::TransitGatewayVpcAttachment Options

Describes the VPC attachment options.

Syntax

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

JSON

{
  "ApplianceModeSupport" : String,
  "DnsSupport" : String,
  "Ipv6Support" : String,
  "SecurityGroupReferencingSupport" : String
}

Properties

ApplianceModeSupport

Enable or disable appliance mode support. The default is disable.

Required: No

Type: String

Allowed values: enable | disable

Update requires: No interruption

DnsSupport

Enable or disable DNS support. The default is disable.

Required: No

Type: String

Allowed values: enable | disable

Update requires: No interruption

Ipv6Support

Enable or disable IPv6 support. The default is disable.

Required: No

Type: String

Allowed values: enable | disable

Update requires: No interruption

SecurityGroupReferencingSupport

Enables you to reference a security group across VPCs attached to a transit gateway (TGW). Use this option to simplify security group management and control of instance-to-instance traffic across VPCs that are connected by transit gateway. You can also use this option to migrate from VPC peering (which was the only option that supported security group referencing) to transit gateways (which now also support security group referencing). This option is disabled by default and there are no additional costs to use this feature.

For important information about this feature, see Create a transit gateway in the AWS Transit Gateway Guide.

Required: No

Type: String

Allowed values: enable | disable

Update requires: No interruption