Chapter 10 Install and System Administration for FortiOS 5.0 : Using the web-based manager : Web-based manager menus and pages : Using information tables : Adding filters to web‑based manager lists
  
Adding filters to web‑based manager lists
Filters are used to locate a specific set of information or content within multiple pages. These are especially useful in locating specific log entries. The specific filtering options vary, depending on the type of information in the log.
To create a filter, select Filter Settings or the filter icon in a column heading. When a filter is applied to a column, the filter icon becomes green. Filter settings are stored in the unit’s configuration and will be maintained the next time that you access any list for which you have added filters.
Filtering variables can include: a numeric range (such as 25-50), an IP address or part of an address or any text string combination, including special characters.
Note that the filtering ignores characters following a “<“ unless the followed by a space. For example, the filtering ignores <string but not < string. Filtering also ignores matched opening and closing (< and >) characters and any characters between them. For example, filtering will ignore <string>.
For columns that contain only specific content, such as log message severity, a list of terms is provided from which options can be selected.