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Obviously the larger the provided subnet, the longer a discovery will take. We recommend /24's for efficiency. There is nothing stopping you from using a /16 (65,535 hosts) or even a /8 (16777214 hosts), but do not expect them to complete in a reasonable timeframe. The first section of the discovery script sends the non-responding IP addresses to the Open-AudTI AudIT server, so even before actually discovering a responding hosts, this section (on a large subnet) may take minutes or even hours.
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