Enables or disables the 'Auto-Learn' Translation feature of
FDDI to Ethernet frames for the objects below. If enabled,
the device will automatically learn the frame type by source
address from the Ethernet interfaces. If enabled, IPX FDDI frames
destined to a learned source address will be translated to the
appropriate frame type. If the Ethernet destination address has
not been heard from, therefore the frame type used is unknown,
the device default frame translation for that frame type will be used.