Scan settings

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The Scan settings tab allows you to select an IP address or range of IP addresses to scan when Assets Discovery is executed. Each set of scan settings is identified with a Scan Setting ID. This is typically a six-digit number like 000001. You can execute one or more specific scans when you run Assets Discovery.

You will have to add a scan with at least one valid IP address for Assets Discovery to function.

SettingDescription

Disabled

If you select this option, Discovery will ignore the scan settings when it is running.

Scan Interval

Choose the interval type when the configured setting should run (daily or weekly).

Next Scan Time/Date

Depending of the interval you can set the next time or date when the scan should run.

Disabled Pattern Files

Select one or more patterns that will be disabled when Assets Discovery is executing this scan. If you are scanning different areas of your network separately, you can disable unused patterns to save time.

Description

A description of the scan setting.

Lock

Select the lock icon at the lower-right corner of the Scan Settings to lock or unlock changes to these settings.

IP-Range

Enter the IP address(es) to scan when Assets Discovery executes.

Special modifiers are available for IP's. You can combine them using the semicolon separator.

IP variations, modifiers, and examples

The following variations can be used:

Variant

Description

192.168.178.10A single IP of a host system.
192.168.178.10;192.168.178.22Two IPs separated by a semicolon.
myserver.company.orgDNS Name of a host.
192.168.178.10-20A given range of IPs from a subnet.
192.168.178.0/24

All 254 IPs of a subnet, specified using the CIDR notation.

[2001:0db8:85a3:08d3:1319:8a2e:0370:7344]A single IPV6 address.

iprange.txt

rangqsfolder/subrange2.txt

A text file specifying the location of the address information, which can contain the previous described range types. The text file is read with every execution of Assets Discovery.

You can also use a number of modifiers to specify which hosts and ports to include when Assets Discovery scans your system.

Modifier

Description

Example

~

Use the tilde modifier to force a scan if the ICMP echo on a host system is disabled.

192.168.178.10~
:<Port>

Use the colon modifier to change the default SSH or SNMP Port if it is changed on a Host system.

192.168.178.10:1387
 !

Use the exclamation mark modifier to set IPs that should be ignored.

192.168.178.150-170! 

Combined Examples:

IP-Range Examples

172.70.10.18:2256;172.80.10.90-200;192.168.70.99~
177.20.80.2-100;177.20.80.50-90!
177.20.80.2-100;177.20.80.50-90!;rangefoled\iprange1.txt;rangefolder\iprange2.txt
192.168.178.10-50;172.213.13.100/27;172.20.222.200/29
192.168.178.10~;172.213.13.0/24
[2001:0db8:85a3:08d3:1319:8a2e:0370:7344]:55221

For IPV6 addresses, it is actually only possible to use single addresses, not ranges. Remember to use braces, around the address.

To add a scan setting

You can add multiple scan settings for Assets Discovery to execute. This could be useful if you wanted to run scans or different parts of your system at different intervals.

To add a scan setting, select the '+' button at top.

To delete a scan setting

  1. To delete a scan setting, select the 'x' button at top.
  2. In the Delete Entry screen, select Yes.

To test a scan setting

Once you have configured a scan setting, you can test the scan without running a full execution of Assets Discovery. The results are displayed immediately, and a more detailed Evaluation Report is saved to your \logs\ directory.

  1. Select Start Evaluation-Report.
  2. Enable or disable the fast checkbox:
  3. If enabled, Assets Discovery tests your scan settings using ICMP pings only.
  4. If disabled, Assets Discovery tests your scan settings by trying each individual connection.
  5. Select Start to begin the test scan. When the scan is complete a success message will be displayed that includes the location of the saved Evaluation Report.


Last modified on May 5, 2024

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