Using Citrix XenApp USB Forwarding

Requirements

• Citrix XenApp 7.6+ / XenDesktop 7.0+
• Citrix Receiver 3.5+
• Citrix Active Directory Schema Extensions Installed (required for automatic redirection)

Configuring Citrix XenApp/XenDesktop Policy

https://support.citrix.com/article/CTX137939

• Start Citrix Studio
• Go to "Policies" on the left-hand side.
• Either edit an existing policy, or create a new policy.
• Edit "Client USB device redirection", set it to "Allowed".
• Edit "Client USB device redirection rules", click "New" and type: "Allow: VID=18FB" (space and capitalization is important, no quotes).
• Click "Finish" and close Citrix Studio.

Configuring Automatic Device Forwarding

https://support.citrix.com/article/CTX123015

Using Group Policy

• Open the group policy editor for the policy controlling your Citrix Receiver client's.
• Go to Administrative Templates -> Citrix Components -> Citrix Receiver -> Remoting client devices -> Generic USB Remoting (if this is missing you need the Citrix Group Policy Extensions, see here).
• Open "New USB Devices", select "Enabled", click "OK".
• Open "Existing USB Devices", select "Enabled", click "OK".
• If you need to restrict which devices get automatically forwarded, open "USB Device Rules", add the required rules and hit "OK".

Using the Registry

• Create a new key located at: HKLM\SOFTWARE\Citrix\ICA Client\GenericUSB\Devices\VID18FB PID0200 (replace PID0200 with the product id for the product you're looking to forward).
• Create a new DWORD value named "AutoRedirect" and set it to "1".