Owners Manual

Discovering Resources | Getting Started
OMNM 6.5.2 User Guide 101
If you have selected Manage by Hostname in your discovery profile, then resync will also retrieve
any IP address changes, for example in a network with DHCP. Any override to resync’s retrieved
Device Naming Format may also change the device’s Name when resync occurs if the IP address has
changed, but it does not override the
Manage by Hostname selection, and OpenManage Network
Manager still keeps the originally retrieved hostname to refer to the device, even though it may not
appear in the Managed Resources portlet and elsewhere.
Finally, you can manually override all retrieved
Name information. Right-click a device and
selecting
Edit , then make the alterations. See Resource Editor on page 186. Such edits only alter
OpenManage Network Manager’s database, not data on the device. To alter data on the device, you
can create an Adaptive CLI. See
Actions and Adaptive CLI .
Resync overwrites any manual alterations if you make the resync property anything but the default.
Zero-Touch Provisioning and Auto-Discovery
Zero-touch provisioning is a process through which devices can be automatically configured and
provisioned. Auto-discovery is a related process through which OpenManage Network Manager
automatically discovers unmanaged devices that have been configured to send traps.
To enable zero-touch provisioning within your network, you will need an external DHCP server.
This server needs to be configured to automatically provision new devices with a basic
configuration file. You can include any basic configuration settings you want within this file.
If you want to enable auto-discovery, then you need to configure the devices in your network to
send traps to OpenManage Network Manager and you will also need to log into the OpenManage
Network Manager web portal and follow a few configuration steps in order to activate this feature.
Note if you want to use zero-touch provisioning in conjunction with auto-discovery, then your basic
configuration file that is provisioned to the device will need to include a setting that tells the device
to send traps to the OpenManage Network Manager server. However, auto-discovery can be used
independently of zero-touch provisioning and vice-versa.
To activate auto-discovery of network devices within OpenManage Network Manager, follow these
steps:
1 Log into the OpenManage Network Manager web portal.
2 Click on the Discover tab.
3 Within the Discovery Profiles portlet, find the entry named “Device Auto-Discovery”. This is
the discovery profile that will be executed when a trap is received from an unmanaged device,
but it needs to be configured properly first.
4 Right-click and Edit this entry.
5 You might want to change some of the settings on the General tab. Please see the Discovery
Profiles section for more information about this edit screen and the available options.
6 Click on the Network tab.
7 Note that unlike the other discovery profiles, within this record, the IP Address(es) field is
intentionally left blank because the IP address of the target device will come from the source
IP address of the trap that is received from the unmanaged device.
8 You will need to configure the credentials within the device(s) that you wish to auto-discover.
If you are using zero-touch provisioning, then you could include authentication credentials in
the basic configuration file that is provisioned to the device.