---
title: "Variables"
description: "Proxy und NAS variables should be used."
category: "Knowledge Base"
subcategory: "Collection"
last_updated: "2023-04-06"
source_url: "https://docs.xeox.com/knowledge-base/1tsADjnvsqfNJwHKuwpWZK/variables/uiaDD8JFniZprd45EGYoAC"
---

# Variables

## Problem:

Proxy und NAS variables should be used.

## Solution:

#### Define IP Plan

To define variables in an IP plan, you must configure the variable under **Network - Subnet**. If you press **Create Subnet**, you can specify what the subnet is about.

![notion image](https://docs.xeox.com/media/d66ad2e29c59e516.png)

When downloading the IP plan or running Wuinstall, the configuration is pre-set and doesn't require additional specifications. If a variable has been previously defined, it will be disregarded and applied during download and execution. The subnets follow a hierarchical structure, and the network that best aligns with the accessing device is automatically selected. Any new configuration added will also be inherited hierarchically.

![notion image](https://docs.xeox.com/media/687677ee5bbf7d63.png)

#### Use in automations

When creating a new [automation](https://docs.xeox.com/automations/kk29w6Dr2iM3dbYa6gqsvV/automation/mZg6HQd9yufhkfDEeu4Yme), you can override proxy and NAS. When **Execute** in the Toolbox is used, and the executable directory is changed to **Specify woking directory**, a path can be entered. It is checked whether the variable from the path exists and can be replaced. This is especially useful when you need different variables on sub-devices.

![notion image](https://docs.xeox.com/media/9f51ec427825cad6.png)

For example, if "\\\\$NAS" is entered as the path, you will be able to overwrite NAS on the hardware.