Knowledge Base NComputing Hardware RX Series

            How to configure USB peripheral device redirection policy for RX300 and RX-RDP?

            Description:

            The redirection of peripheral device can be configured in the "Peripherals" section of Setup UI for both RX300 and RX-RDP thin clients. To simplify the setup there are three general redirection policies, which can be selected:  Corresponding description below





            ·        No redirection – No peripheral devices will be redirected to remote server. This is the most secure (but least functional) option. Keyboard and mouse are always treated separately and will always be redirected to the remote server.

            ·        Default – this is the right choice for typical users. Best possible redirection types are pre-selected. On RX300 devices the default selections are optimized for UXP connections. On RX-RDP devices the selections are optimized for RDP connections.

            ·        Custom – this is the most flexible selection, which allows the administrator to decide what devices will be redirected and which not, and what redirection method will be used for each device class. Additionally, devices not reporting any supported device class (e.g. reporting the USB class 255, which is the vendor-specific class) can be added for the Generic USB redirection as custom devices (identified by the Vendor ID and Product ID).

             

            The possible peripheral devices redirection types (methods) are:

            ·        No redirection – the device will not be redirected to remote server.

            ·        Native – protocol-specific, native (functional) redirection will be used for the device. Such redirection leverages functionality-specific virtual channel of remoting protocol and usually provides optimized support for the peripheral device. When the Native redirection is available for the peripheral device/protocol combination then it’s advisable to use it, as for peripheral devices redirected with the Native method the remote server ensures that only the session owner will have access to the device.

            ·        Generic USB – low level USB-based redirection will be used for the peripheral device. A virtual USB host controller on the server will detect the device and load a server-side device driver for it. This redirection method usually generates more network traffic compared with the Native method, as for Generic USB redirection the low-level, raw USB communication will be redirected. Additional mechanisms must exist in the server for filtering the devices and making sure that only the session’s owner will have access to the device. If such mechanisms do not exit, it can happen that only the console user or users of all terminal sessions will have access to the redirected device.

             

            Following redirection types are available for different peripheral device classes and remoting protocols:

             

            Peripheral device class

            UXP protocol

            RDP protocol

            Mass storage

            No redirection, Generic USB

            No redirection, Native

            Audio

            No redirection, Generic USB, Native

            No redirection, Generic USB, Native

            Printers

            No redirection, Generic USB

            No redirection, Generic USB

            Imaging devices (webcams)

            No redirection, Generic USB

            No redirection, Generic USB

            Smart card readers

            No redirection, Generic USB, Native

            No redirection, Native

            Serial ports

            No redirection, Generic USB

            No redirection, Generic USB, Native

            Human Interface Devices

            No redirection, Generic USB

            No redirection, Generic USB

            Custom devices

            No redirection, Generic USB

            No redirection, Generic USB

             


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