Owner's Manual

Configuring Dell OpenManage IT Assistant to Monitor Your Systems 113
Configuring Discovery Ranges
IT Assistant maintains information about network segments that it uses to
discover devices. A discovery range can be a subnet, range of IP addresses on
a subnet, individual IP address, or an individual host name.
Tom’s enterprise network is organized into a number of subnets. There are
850 servers in the datacenter and 150 remote servers. Tom refers to the
IP subnet ranges he wrote down for his servers (see Table 6-2).
Tom’s datacenter servers are divided into eight separate subnets, and his
remote servers are divided into two subnets.
To identify his systems to IT Assistant, Tom must define a discovery range.
To identify an include range, Tom performs the following steps:
1
Tom selects Discovery and Monitoring  Ranges from the menu bar.
The
Discovery Ranges navigation tree is displayed on the left side of the
IT Assistant window.
2 Tom expands Discovery Ranges , right-clicks Include Ranges and selects
New Include Range .
The
New Discovery Wizard starts.
3 In step 1 of the wizard, Tom can enter an IP address, an IP address range,
or a host name.
Based on the information about Tom’s systems in Table 6-2, he must add
different IP address ranges. Tom can combine those ranges that have
common settings (community name, timeouts, retry intervals, choice of
protocol for discovery, and user credentials). For example, he can combine
the Data Center Servers 3 to Data Center Servers 9 groups.
He enters the IP address range as:
192.166.155.*
Instead of completing this wizard multiple times with same entries in all
the wizard panes to include all these systems, Tom clicks
Add to add
multiple ranges of IP addresses. The second time, he enters:
192.166.156.*
and so on.