VMS Help LANCP, SET, DEVICE parameters, Parameter  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 device-name

    Specifies a device to be entered in the LAN volatile device
    database, or whose parameters are to be modified. The device
    name has the form ddcu where dd is the device code, c is the
    controller designation, and u is the unit number. LAN devices are
    specified as the name of the template device which is unit 0. For
    example, the first DE435 Ethernet device is specified as EWA0,
    the second as EWB0.