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

Installing and Running Auto-Discovery Client

As of Device42 v14+, the .NET discovery tool has been depreciated and replaced by the WDS service (Windows Discovery Service). Remote Collectors are capable of running all discoveries from within the Device42 UI itself, including WMI discoveries as long as the WDS service has been configured

See the next topic below for instructions on setting up the WDS (Windows Discovery Service), “Setting up WDS and RC for Windows Discovery from the UI”.

The installation is simple. Once you have it installed, run it from Start > All Programs > Device42 > D42AutoDisc.exe

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.

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Device Details Example

Same screen in the new UI:
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.

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 other category.

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

Regular: is for physical devices.
Blade: is for blade devices.
Other: is for other devices like 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.