This article applies to StorageGRID 11.4.0 or later if you are using one or more external Layer 7 load balancers, such as NGINX or HAProxy, and an S3 bucket or group policies that are IP-based, Storag...This article applies to StorageGRID 11.4.0 or later if you are using one or more external Layer 7 load balancers, such as NGINX or HAProxy, and an S3 bucket or group policies that are IP-based, StorageGRID must determine the real sender's IP address. If an external (third party) Layer 7 load balancer is used to route requests to the Storage Nodes, StorageGRID needs to determine the real sender’s IP address.