imdsSupport

Set to v2.0 to indicate that IMDSv2 is specified in the AMI. Instances launched from this AMI will have HttpTokens automatically set to required so that, by default, the instance requires that IMDSv2 is used when requesting instance metadata. In addition, HttpPutResponseHopLimit is set to 2. For more information, see Configure the AMI in the Amazon EC2 User Guide.

Do not use this parameter unless your AMI software supports IMDSv2. After you set the value to v2.0, you can't undo it. The only way to “reset” your AMI is to create a new AMI from the underlying snapshot.