USB Redirection

Menu path: Setup > Sessions > Horizon Client > Horizon Client Global > USB Redirection

In this area, you can enable and configure USB redirection for specific devices. From IGEL Linux 10.3.100, a USB composite device can be split into its components (interfaces). Example: USB dictation device that is split into the components loudspeaker, microphone, storage device/drive and control buttons.

Ensure that the power supplied by the USB connection is adequate for the device.


If USB redirection is enabled, drive mapping should be disabled; see Drive mapping. Otherwise, USB redirection can cause a storage device to be removed from the drive mapping. This is the case if the Connect automatically upon insertion option is enabled.

You can change the following settings:

  • Enable USB Redirection
    • On
    • Off
  • Automatically connect at startup

    USB devices that were inserted before the start of the session are available in the session. (default)

  • Automatically connect when inserted

    USB devices that are inserted during the session are available in the session. (default)

  • Default rule: This rule will apply if no special rule was configured for a class or a device.
    • Allow
    • Prohibit
  • Automatic splitting of composite USB devices

    A USB composite device will automatically be split into its individual components (interfaces). The class rules will be applied to these individual devices.

    The device will not be split into its components.

Creating a class rule:

  1. To create a new rule, click

    in the Class Rules area.
  2. Choose a Rule. The rule specifies whether use of the device class defined here is allowed or prohibited.
  3. Under Family, select the class of device for which the rule should apply. Examples: Audio, Printer, Smartcard, Storage Devices.
  4. Under Name, give a name for the rule.
  5. Click on Ok.
    The rule is active.


To create a device rule, proceed as follows:

When a rule is defined, at least one of the properties Vendor ID or Product ID must be given.
  1. To create a new rule, click

    in the Device Rules area.
  2. Choose a Rule. The following rules are available:
    • Deny: The device will not be redirected via USB redirection.
    • Allow: The device will be redirected via USB redirection.
    • Split: A USB composite device will automatically be split into its individual components (interfaces).
    • No auto-split: A USB composite device will not be split.
  3. Give the Vendor ID of the device as a hexadecimal value.
  4. Give the Product ID of the device as a hexadecimal value.
  5. Only for USB composite devices: Under Interface Exclue List, enter a list of interfaces which are to be excluded from USB redirection. The individual interfaces can be separated by commas or spaces.
  6. Under Name, give a name for the rule.
  7. Click on Ok.
    The rule is active.
Last update: October 30, 2018