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Introduction

When a discovery ius is run, the relevant discovery scan option is chosen and those settings are used by Nmap to scan the target devices. If no option set is chosen, the default configuration item (discovery_default_scan_option) is selected and used  The scan options determine which ports nmap scans, how fast they scan and whether or not nmap ping is first used to determine if the IP is live or not.

Starting with Open-AudIT 2.3.2 we have introduced sets of preconfigured options for running the discovery scan, these pre-configured options allow a range of Nmap scan options. More detail is here: New Discovery Options

As at 3.3.0 we have introduced a "filtered|open" option to discovery scan options with , this option determines if an open but filtered port is considered as an interesting port on the remote device. It has a default of 'y'. Previously we used the "filtered" column to check for open|filtered. This change aligns the discovery scan options with Nmap return strings.

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