# File lib/rds/rds.rb, line 182
        def authorize_db_security_group_ingress_ec2group(group_name, ec2_group_name, ec2_group_owner_id, options={})
            params = {}
            params['DBSecurityGroupName'] = group_name
            params['EC2SecurityGroupOwnerId'] = ec2_group_owner_id
            params['EC2SecurityGroupName'] = ec2_group_name
            link = do_request("AuthorizeDBSecurityGroupIngress", params)
        rescue Exception
            on_exception
        end