---
title: Device Auto Discovery
slug: kronpam-reference-guide-3-9-0/device-auto-discovery
description: Learn how to effectively utilize the Device Auto-Discovery feature with our comprehensive document. Discover how to scan your network subnet or existing devices in device groups, while setting essential parameters and global username/password. Follow the 
docTags: 
createdAt: 2022-07-26T12:37:04.000Z
---

Device Auto-Discovery can be used to scan a network subnet or existing devices in device groups. To discover devices some parameters should be added to the related element types:

1. Navigate to **Devices** > **Element Type**.
2. Select an element type to set the required parameters and click the **Actions **button.
3. Click on the **Edit Element Type** button.
4. Set the related **Association Tag.**
5. Click **Next**.

Set the following parameters:

**discovery.commands.hostname: **Command to get the hostname.

**discovery.commands.hostname.pattern: **Regex to get the hostname from the output of the hostname command.

**discovery.commands.version.command: **Command to get the version.

**discovery.model.match.regex: **Word or regex to be matched to the output of the version command.
**discovery.name.server.lookup.hostname**: Set as **true** or **false**. The default value is **false.** It allows for device discovery with the hostname, by executing the command **nslookup.**


Global username/password and/or subnet addresses should be set on the device groups. To use Global username/password to discover subnets or existing devices:

1. Navigate to **Devices **> **Inventory**.
2. Click on the device group's action and select** Edit.**
3. **Next.**
4. On the Direct Credentials, enter the **Username** and **Password, **and enter the related information.
5. **Save** each property.

To add a subnet to discover subnets:

1. Navigate to **Devices**> **Inventory**.
2. Click on the device group's action and select** Subnet.**
3. Set subnet information and** Save**.

Auto-discovery steps:

1. Navigate to **Devices**> **Inventory**.
2. Click on the **Add Discovery** **Profile.**
3. Fill out the relevant device discovery information and click **Discover**.
4. Fill out the relevant device discovery information and click **Save Scheduler**.

![](https://api.archbee.com/api/optimize/g9cApVza9NIhSh0pjZYtA/ADRWU-VNLU1qLT4she4RF_image.png "Subnet Device Auto Discovery")

The Auto Discovery screen elements are:

**Access Protocol:** Protocol to discover devices. If the SNMP protocol is selected, the protocol to change after the discovery should be selected. 

**Possible Element Types**: Possible element types in the search range. Devices will be matched with these element types. 

**Discover Type**: If **a Subnet** is selected, the subnet of the device groups is scanned. If **Existing Devices** is selected, the existing devices in the selected device groups are scanned for changes. 

**Cron Expression**: If the user wants to scan for devices periodically, a cron expression should be entered.

:::hint{type="info"}
The Device Auto Discovery feature can be used for existing devices. It allows for the discovery of devices that have had their properties changed, such as the IP of a Linux device that has been converted to a Windows RDP device.
:::

The [Device Auto-Discovery Logs](docId\:H9wduVLHOfZU5sw0I6nGA) show the results of the device auto-discovery. Logs can be searched using different variables, such as date, time, login success, device IP, etc.