To exclude a particular range of systems, for example, 22 in the second octet of an IP address range, use a filter that includes every other possibility, as shown in Filtering by IP address. For the System Types field, select all system types.

Table 1. Filtering by IP address

Discovery filter fields


IP Address Range

172.<16-21>.55.* | 172.<23-31>.55.*

System Name


System Description




System Types

<select all system types>

In general, you should use the ipExcludeList parameter in the discovery.conf file, not a discovery filter, to exclude specific systems.