Include or Exclude Subnetworks for User Mapping

  • Device > User Identification > User Mapping
Use the Include/Exclude Networks list to define the subnetworks that the User-ID agent will include or exclude when performing IP address-to-username mapping (discovery). By default, if you don’t add any subnetworks to the list, the User-ID agent performs discovery for user identification sources in all subnetworks except when using WMI probing for client systems that have public IPv4 addresses. (Public IPv4 addresses are those outside the scope of RFC 1918 and RFC 3927).
To enable WMI probing for public IPv4 addresses, you must add their subnetworks to the list and set their
Discovery
option to
Include
. If you configure the firewall to redistribute user mappinginformation TechDocs_logo_cropped.png to other firewalls, the discovery limits you specify in the list will apply to the redistributed information.
Use the include and exclude lists to define the subnets in which the firewall performs user mapping.
You can perform the following tasks on the Include/Exclude Networks list:
Task
Description
Add
To limit discovery to a specific subnetwork,
Add
a subnetwork profile and complete the following fields:
  • Name
    —Enter a name to identify the subnetwork.
  • Enabled
    —Select this option to enable inclusion or exclusion of the subnetwork for server monitoring.
  • Discovery
    —Select whether the User-ID agent will
    Include
    or
    Exclude
    the subnetwork.
  • Network Address
    —Enter the IP address range of the subnetwork.
The User-ID agent applies an implicit exclude all rule to the list. For example, if you add subnetwork 10.0.0.0/8 with the
Include
option, the User-ID agent excludes all other subnetworks even if you don’t add them to the list. Add entries with the
Exclude
option only if you want the User-ID agent to exclude a subset of the subnetworks you explicitly included. For example, if you add 10.0.0.0/8 with the
Include
option and add 10.2.50.0/22 with the
Exclude
option, the User-ID agent will perform discovery on all the subnetworks of 10.0.0.0/8 except 10.2.50.0/22, and will exclude all subnetworks outside of 10.0.0.0/8. If you add
Exclude
profiles without adding any
Include
profiles, the User-ID agent excludes all subnetworks, not just the ones you added.
Delete
To remove a subnetwork from the list, select and
Delete
it.
Tip
: To remove a subnetwork from the Include/Exclude Networks list without deleting its configuration, edit the subnetwork profile and clear
Enabled
.
Custom Include/Exclude Network
By default, the User-ID agent evaluates the subnetworks in the order you add them, from top-first to bottom-last. To change the evaluation order, click
Custom Include/Exclude Network Sequence
. You can then
Add
,
Delete
,
Move Up
, or
Move Down
the subnetworks to create a custom evaluation order.

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