---
title: Configuring alternative IP source headers
description: Configure an ordered list of Header names to identify the source IP address.
component: pingaccess
version: 9.0
page_id: pingaccess:pingaccess_user_interface_reference_guide:pa_configuring_alt_ip_source_headers
canonical_url: https://docs.pingidentity.com/pingaccess/9.0/pingaccess_user_interface_reference_guide/pa_configuring_alt_ip_source_headers.html
revdate: February 6, 2023
section_ids:
  steps: Steps
  choose-from: Choose from:
  choose-from-2: Choose from:
---

# Configuring alternative IP source headers

Configure an ordered list of Header names to identify the source IP address.

## Steps

1. Click **Settings**, then go to **HTTP Requests > IP Source**.

2. From the **Header Names** list, search for the header names you want to add..

   You can add a header by clicking **[icon: plus, set=fa]Header Names** or delete a header by clicking the **Delete** icon.

3. In the **List Value Location** field, select either:

   ### Choose from:

   * `First`

   * `Last`

   When a list of values is in the header, this step determines if the first value or the last value in the list should be used as the IP Source value. The default value is `Last`.

4. To determine if you should use the upstream IP address for rule evaluation, if none of the listed headers are present in the request, either:

   ### Choose from:

   * Select the **Fallback to Last Hop IP** check box.

   * Clear the **Fallback to Last Hop IP** check box.

   If this value is disabled and no headers match, the network range rule will return a `Forbidden` status.

   |   |                                                                                                                             |
   | - | --------------------------------------------------------------------------------------------------------------------------- |
   |   | This option uses the specified headers in an agent deployment, and uses networking layer information in a proxy deployment. |

5. Click **Save**.