CIDRブロックをVPCに関連付けます。 詳細は次のリンクを参照してください。 https://docs.aws.amazon.com/ja_jp/cli/latest/reference/ec2/associate-vpc-cidr-block.html
| aws ec2 associate-vpc-cidr-block --amazon-provided-ipv6-cidr-block --vpc-id |
| Enabling IPv6 on existing VPCs and subnets – cloudiamo.com : http://cloudiamo.com/2017/02/14/enabling-ipv6-on-existing-vpcs-and-subnets/ |
| aws ec2 associate-vpc-cidr-block --amazon-provided-ipv6-cidr-block --vpc-id vpc-a034d6c4 |
| disassociate-vpc-cidr-block — AWS CLI 1.16.6 Command Reference : http://docs.aws.amazon.com/cli/latest/reference/ec2/associate-vpc-cidr-block.html |