Getting Started with Auto-Discovery

The following how-to runs down quickly enumerating network objects with Device42 Autodiscovery.

Auto-Discovery Account WARNING

Discovery Account WARNING: Please do not set up an auto-discovery / scan using critical [production] account credentials! Please create a separate, dedicated account to use only for discovery.

Depending on permissions granted & your configured password policies, account lock-out could result in an otherwise completely avoidable outage. You, the customer, are responsible for any such behavior that might result.

Creating Subnets

Create a new subnet

All discovered IP addresses will be placed in their respective subnets if subnets have been pre-defined. Otherwise, IPs end up in an “undefined” subnet.

Go to IPAM > Subnets, click on +Add Subnet on the top right corner.

The required fields are Name, Network and mask bits. Others are optional. The begin and end range are automatically calculated based on network and bits if left empty.

View or edit existing subnets

Setting up Auto-Discovery

Note: All recent releases [v14+] of Device42 can run all discoveries from the web UI [and/or via Remote Collectors], including WMI discovery as long as the WDS service (Windows Discovery Service) has been configured.

Once you’ve installed the WDS (if you’ll be discovering any Microsoft Windows-based products), you’re ready to run your first discovery. See the Auto-discovery best practices page for our recommendations on the best order in which to run initial discovery, or jump right in to a Network SNMP discovery if you’re already familiar!

Dealing with device type “unknowns”

Any devices that are not virtual will come over as device type “unknown” initially. The reason is that the appliance has not been told whether the hardware belongs to the physical, blade or another category.

The following device types have a hardware model. Each hardware model can be one of 3 types: regular, blade or other.

  • Regular: device type represents physical devices
  • Blade: device type represents blade devices
  • Other: device type represents ‘other’ devices, e.g. laptops, workstations, network printers, etc. (that are not rack mounted)

Once you change a hardware type, all the corresponding devices that refer to that hardware and are type unknown, will automatically be categorized accordingly.

The “Bulk hardware edit” feature allows changing hardware properties in bulk for all undefined hardware types and it will automatically categorize all devices belonging to it. See the Bulk Edit YouTube videos or Bulk edit documentation for more information!

Also, once a hardware type is defined, any new imported or discovered devices will go into the right category.

[DEPRECIATED] – Using the .NET Stand-alone Discovery Tool

The .NET discovery tool has been depreciated and is replaced by the WDS service. See
“Setting up WDS and RC for Windows Discovery from the UI”.

Add the URL and the credentials for your Device42 appliance to the settings tab, and head over to the Windows and Linux tab to configure discovery. Simply enter the IP range (or server names), credentials (if required), and start the discovery!

The Linux tab requires you enter a username and password, and the Help tab has brief tips around this. See the Documentation page for the Device42 auto-discovery client [or for the remote collector] for more information.

The image below is an example of the DEPRECIATED Windows Discovery Tool UI (aka the .NET discovery tool):

CI Details screens [pre-v15] looked like this:

Device Details Example

This is the same screen in the new D42 UI [v15+]:
Device Details example, v15+

Device details like name, hardware model, serial #, CPU & RAM info, OS, MAC, and IP info are populated depending on what is discovered.