{
    "Version": "2012-10-17",
    "Id": "S3PolicyId1",
    "Statement": [
        {
            "Sid": "statement1",
            "Effect": "Deny",
            "Principal": "*",
            "Action":["s3:*"]  ,
            "Resource": "arn:aws:s3:::examplebucket/*",
            "Condition" : {
                "NotIpAddress" : {
                    "aws:SourceIp": "192.168.143.188/32" 
                } 
            } 
        } 
    ]
}