**To create a VPC attachment** The following ``create-vpc-attachment`` example creates a VPC attachment with IPv6 support in a core network. :: aws networkmanager create-vpc-attachment \ --core-network-id core-network-0fab62fe438d94db6 \ --vpc-arn arn:aws:ec2:us-east-1:987654321012:vpc/vpc-09f37f69e2786eeb8 \ --subnet-arns arn:aws:ec2:us-east-1:987654321012:subnet/subnet-04ca4e010857e7bb7 \ --Ipv6Support=true Output:: { "VpcAttachment": { "Attachment": { "CoreNetworkId": "core-network-0fab62fe438d94db6", "AttachmentId": "attachment-05e1da6eba87a06e6", "OwnerAccountId": "987654321012", "AttachmentType": "VPC", "State": "CREATING", "EdgeLocation": "us-east-1", "ResourceArn": "arn:aws:ec2:us-east-1:987654321012:vpc/vpc-09f37f69e2786eeb8", "Tags": [], "CreatedAt": "2022-03-10T20:59:14+00:00", "UpdatedAt": "2022-03-10T20:59:14+00:00" }, "SubnetArns": [ "arn:aws:ec2:us-east-1:987654321012:subnet/subnet-04ca4e010857e7bb7" ], "Options": { "Ipv6Support": true } } } For more information, see `Create an attachment <https://docs.aws.amazon.com/vpc/latest/cloudwan/cloudwan-create-attachment.html>`__ in the *Cloud WAN User Guide*.