## Introduction

This guide explains how to preserve the client's source IP address for requests going to your cluster.

This is useful when you want to allow requests only from a defined IP range, or track client IPs for analytics.

## Preserving Client's Source IP Address

On your Service of type LoadBalancer, add the `uses-proxyprotocol` annotation:

```console
$ kubectl annotate service my-service load-balancer.hetzner.cloud/uses-proxyprotocol="true"
```