There might be some IP devices in your network that you either permanently do not want to be scanned, or want to exclude those from a scan at a scheduled time. For example, you might have some legacy applications which will only run on old hardware which might be regarded as fragile. You can add this device as a single IP exclude, or as an Exclude Range.

To add an Exclude Range

You can add the following types of exclude ranges:

  • Permanent
  • Scheduled

To add a permanent exclude range

  1. On the Discovery Status page, click Add New Exclude.
  2. Enter the information for the exclude range in the fields.

    Field name

    Details

    Range

    Enter IP address information in one of the following formats:
    • IPv4 address (for example 192.168.1.100). Labelled v4.
    • IPv6 address (for example 2001:500:100:1187:203:baff:fe44:91a0). Labelled v6.
    • IPv4 range (for example 192.168.1.100-105, 192.168.1.100/24, or 192.168.1.*). Labelled v4.
    As you enter text, the UI divides it into pills, discrete editable units, when you enter a space or a comma. According to the text entered, the pill is formatted to represent one of the previous types or presented as invalid.

     Click here for more information on using the pill UI.

    Invalid pills are labeled with a question mark. You can also paste a list of IP addresses or ranges into this field. If any pills are invalid, a message stating the number of invalid pills is displayed above the range field. Clicking the link applies a filter which shows only invalid pills which you can then edit or delete. The filter can be removed by clicking clear in the Showing n of n label below the Range field. There is no paste option on the context sensitive (right click) menu.
    Warning: You cannot paste a comma-separated list of IP address information into the Range field in Firefox. This can crash the browser. You can use a space separated list without any problems.
    • To edit a pill, click the pill body and edit the text.
    • To delete a pill, click the X icon to the right of the pill, or click to edit and delete all of the text.
    • To view the unformatted source text, click the source toggle switch. The source view is useful for copying to a text editor or spreadsheet. Click the source toggle switch again to see the formatted pill view.
    Underneath the entry field is a filter box. Enter text in the filter box to only show matching pills.

    (info) Pills are not currently supported in Opera.

    Label

    Enter a label for the discovery run. Where the discovery run is referred to in the UI, it is this label that is shown.

    Description

    A free text description of the exclude range.

  3. Click OK.
    The Excluded Ranges tab is displayed with the new exclusion.

To add a scheduled exclude range

  1. On the Discovery Status page, click Add New Exclude.
  2. Enter the information for the exclude range in the fields.

    Field name

    Details

    Range

    Enter IP address information in one of the following formats:
    • IPv4 address (for example 192.168.1.100). Labelled v4.
    • IPv6 address (for example 2001:500:100:1187:203:baff:fe44:91a0). Labelled v6.
    • IPv4 range (for example 192.168.1.100-105, 192.168.1.100/24, or 192.168.1.*). Labelled v4.

    Large scheduled exclude ranges

    If you specify a scheduled exclude range which blocks 65535 IP addresses or more of a scan range, new IP addresses from that scan are not added to the scan queue until at least one of the blocked IP addresses is allowed to scan.

    As you enter text, the UI divides it into pills, discrete editable units, when you enter a space or a comma. According to the text entered, the pill is formatted to represent one of the previous types or presented as invalid.

     Click here for more information on using the pill UI.

    Invalid pills are labeled with a question mark. You can also paste a list of IP addresses or ranges into this field. If any pills are invalid, a message stating the number of invalid pills is displayed above the range field. Clicking the link applies a filter which shows only invalid pills which you can then edit or delete. The filter can be removed by clicking clear in the Showing n of n label below the Range field. There is no paste option on the context sensitive (right click) menu.
    Warning: You cannot paste a comma-separated list of IP address information into the Range field in Firefox. This can crash the browser. You can use a space separated list without any problems.
    • To edit a pill, click the pill body and edit the text.
    • To delete a pill, click the X icon to the right of the pill, or click to edit and delete all of the text.
    • To view the unformatted source text, click the source toggle switch. The source view is useful for copying to a text editor or spreadsheet. Click the source toggle switch again to see the formatted pill view.
    Underneath the entry field is a filter box. Enter text in the filter box to only show matching pills.

    (info) Pills are not currently supported in Opera.

    Label

    Enter a label for the discovery run. Where the discovery run is referred to in the UI, it is this label that is shown.

    Description

    A free text description of the exclude range.

    Frequency

    Add text

    Start

    Based on the selected frequency of the scheduled exclude, you are presented with the following start options:
    Weekly by days of week: You are provided with buttons for each day and drop down menus for the start time in hours and minutes. You can select one or more days from the day buttons.
    Once per week: You are provided with drop down menus to select the day of the week and the start time in hours and minutes.
    Monthly by day of month: You are provided with drop down menus to select the day of the month and the start time in hours and minutes.
    Monthly by week of month: You are provided with drop down menus to the select the week, the day of the week, and the start time in hours and minutes.

    For example, to start a scheduled weekly exclude which starts on Friday at 19:30 hrs and continues until Saturday, you will do the following:

    1. Select the exclude frequency as Weekly by days of week.
    2. Click on the F and S day buttons.
    3. From the time drop down menu, select 19 hours and 30 minutes.

    End

    Based on the selected frequency of the scheduled exclude, you are presented with the following end options:
    Weekly by days of week: You are provided with the drop down menus to select the end time in hours and minutes.
    Once per week: You are provided with the drop down menus to select the day of the week and time to end a scheduled exclude.
    Monthly by day of month: You are provided with the menus to select the day of the month and time to end a scheduled exclude.
    Monthly by week of month: You are provided with the drop down menus to the select the number of days and the time within which a scheduled exclude must end.

    For example, to end a scheduled weekly exclude which starts on Friday at 19:30 hrs and continues until 21 hours 30 minutes on Saturday (see the example for the Start field above), you will select 21 hours and 30 minutes from the time drop down menu.

To edit an existing exclude range

You can edit an existing exclude range. If the exclude range is currently in progress, it is automatically cancelled when you edit it.

  1. From the Exclude Ranges tab of the Discovery Status page, click the exclude range that you want to edit.
    All of the fields are editable.
  2. Make the required changes and click OK.

To enable or disable an exclude range

You can enable or disable an existing exclude range, whether it is permanent or scheduled.

From the Exclude Ranges tab of the Discovery Status page, select individual, multiple, or all exclude ranges to enable or disable. If the exclude range is currently in progress, it is cancelled if you make and apply any changes.

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