aws ec2 disassociate-nat-gateway-address
Disassociates secondary Elastic IP addresses (EIPs) from a public NAT gateway. AWS CLI reference
4 options Its page in the AWS CLI reference
Options
--association-idsThe association IDs of EIPs that have been associated with the NAT gateway.--dry-runChecks whether you have the required permissions for the action, without actually making the request, and provides an error response.--max-drain-duration-secondsThe maximum amount of time to wait (in seconds) before forcibly releasing the IP addresses if connections are still in progress.--nat-gateway-idThe ID of the NAT gateway.