Discovering Networks Using OpManager

OpManager uses ICMP/Nmap to discover the devices in a network. You can either discover a specific range of devices or the entire network.

  1. Discovering devices from an IP Range
  2. Discovering individual devices
  3. Discovering a complete network
  4. Discovering devices by CSV import
  5. Import devices from Active Directory
  6. Rediscover the existing devices
  7. Discovering Interfaces
  8. Scheduled discovery

Discover devices in an IP range

To discover a selected range of devices,

For OpManager versions below 125174

For OpManager versions 125174 and above:

  1. Go to Settings -> Network Discovery -> New Discovery.
  2. Select the IP Range option.
  3. Enter the start and end IP of the required range.
    Start IP: Specify the IP address of the device in the range from where OpManager should start the discovery process. End IP: Specify the IP address till which the devices are to be discovered.
  4. Select the required Credentials
  5. Click on Discover and OpManager will direct you to the 'Discovered Devices' page.
  6. Approve or Ignore the discovered devices by clicking on the respective options. The approved devices will be added to the OpManager inventory and moniotored. The ignored devices will be removed from the queue of discovered devices and restricted from future addition.

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Import devices from Active Directory

Discover devices in your domain by importing them from the Active Directory.

  1. Go to Settings -> Network Discovery -> New Discovery.
  2. Select the Import from AD option.
  3. Enter domain controller name, domain name, user name and password.
  4. Click on Verify to initiate the discovery process and OpManager will direct you to the 'Discovered Devices' page.
  5. Approve or Ignore the discovered devices by clicking on the respective options. The approved devices will be added to the OpManager inventory and moniotored. The ignored devices will be removed from the queue of discovered devices and restricted from future addition.

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Discover interfaces

Interface discovery can be performed in different ways.

During the initial discovery of devices

By default, automatic discovery of devices will be disabled in OpManager. To enable it, go to Settings -> Discovery -> Discovery Settings and enable the Interface Discovery option. OpManager will now automatically discover the interfaces associated with the discovered devices (when discovery is performed from 'Add Device' page). During bulk device discovery, the required interfaces can be selected and discovered from the Discovery-Interface page.

From the Device Snapshot page

  1. Go to the device snapshot page of the discovered device.
  2. In the Interface tab, click on the Discover Interfaces option.
  3. The interfaces associated with your device will be discovered and added in OpManager.

From the Interface Discovery page (only for OpManager versions 125174 and above):

  1. Go to Settings -> Discovery -> Interface Discovery
  2. Define a condition and criteria for interfaces to be discovered.
  3. Click on the Discover option to start discovering interfaces that matches the specified criteria.

 

Schedule Discovery

You can schedule device discovery in OpManager at specific intervals by specifying the IP range. The created schedule can be saved as a profile and reports can be generated. To schedule a profile,

  1. Click on the 'clock' icon displayed under Actions column of the respective Discovery Profile.
  2. In the Discovery Schedule page, define the frequency at which you would like to re-run the discovery schedule and save the profile.

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