Users Guide

Discovering Resources | Getting Started
98 OMNM 6.5.3 User Guide
You can exclude IP addresses, or ranges of IP addresses if you check the Display exclusion
input
checkbox and input the addresses you want excluded as you did for those you entered in
the
Address(es) for Discovery field . Such exclusions only apply to the profile where you enter
them. To exclude an address or range, use the com.dorado.redcell.discovery.exclude property.
Examples of how to enter such exclusions appear in the redcell.properties file under
owareapps\redcell\lib. As always, best practice, if you want such properties to persist is to put
the property in owareapps\installprops\lib\installed.properties.
6 Authentication —You can Create new , or Choose existing authentications. (See Tuning
Application Features’ Performance Impact
on page 112 for more about creating
authentications.) Notice that authentications appear with
Edit/Delete icons and Up/Down
arrows on their right. The
Up/Down arrows order authentications, so OpenManage Network
Manager tries the top authentication first, then the next, and so on.
If you have an authentication like
admin/abc123 and one that is identical with an enable-
level login/password (
admin/abc123/enable/enable123 ), make sure the
authentication with
enable appears first in the list, otherwise, discovery finds the device,
but does not access its enable functionality.
CAUTION:
If you do not get to the correct level of authentications—for example the “enable” user—then
OpenManage Network Manager’s full functionality is not available. The functionality will not be available
for backup, restore, deploy, seeded or created actions that require a device enable login, Proscan, some
performance monitoring that requires for OMNM to log into the device to retrieve an information using
command line interface (CLI). Also, some device information will be missing like firmware versioning,
serial number, or port attributes when OMNM cannot retrieve that information using SNMP and needs to
use CLI to retrieve that kind of information
NOTE:
Best practice is to avoid special characters, particularly # and > (command line prompts) in device
banners so terminal access is unambiguous.
The Edit icon opens the authentication editor. Click the arrows to arrange the order in which
the software tries credentials (top first). Ordering only applies when two credentials are of the
same type.
Actions
7 You can configure Actions to run as part of discovery. By default, the actions screen includes
the
Resync action. For more about that, see Configuring Resync on page 100.
Use
Add Action to select others to enter here. You can also edit parameters (if available),
delete and re-order the actions listed here by clicking the icons to the right of them.
OpenManage Network Manager executes them in top-to-bottom order.
By default discovery now automatically updates monitor targets with discovered equipment.
For example, if you have a monitor targeting the dynamic All Dell Devices group, and
discover a Dell device, discovery automatically adds the discovered device to the monitor’s
target list.
Device discovery initiated by web services does not require an existing discovery profile,
however, if a default discovery profile exists, then discovery initiated by web services uses it. If
you have updated your system, you must add the Refresh Monitor Targets action to any
existing discovery profiles you have created before this default behavior occurs in upgraded
discovery profiles.