Discovery Scan Templates and Scans

A scan template pairs the hub that scans with the credentials it uses and the IP ranges to cover, so the same scan can be run again without rebuilding it. A discovery scan is one run of a template. Saving a scan assigns the run to the hub, which picks it up the next time it checks for work.

Create a scan template

1. Open the Scan Templates tab, or the setup step Create a Scan Template. The page states what it will link: the protocol, the hub and the credential set.
2. Enter a name. The default is the protocol followed by Asset Discovery, for example SNMP Asset Discovery.
3. Enter the IP ranges, one per line. Each line can be a single IP address, a CIDR block or a range.
4. Select Save Scan Template.

The field shows the number of ranges and targets and counts invalid lines. A scan covers at most 262,144 addresses, and the hub cannot expand a range wider than a /14 for IPv4. Split larger estates across templates.

Always name the ranges. If a scan names none, the hub scans only the /24 around its own address, which is often the wrong network.

Start, schedule and retry a scan

• Run a scan now. In the setup step Create a Discovery Scan, name the run and select Start First Scan. Later runs start from the Discovery Scans tab or from a scan template.
• Repeat a scan. Add a recurrence to the scan template to run it on a schedule. Run templates against stable ranges at off-peak times, because Windows scans take longer than SNMP scans.
• Retry a failed scan. A scan that stopped before finishing offers Retry this scan, once. It repeats the run with the same settings, on the same hub when that hub is still available.
• Pause or resume a scan. A paused scan keeps its place and continues where it stopped.

Scan status

To read what a completed scan found, see Reading Scan Results and Discovery Failures.