controller

    Required.

    Specifies the OpenVMS device name of the communication controller
    (as displayed by the DCL command SHOW DEVICE) to be mapped to an
    Internet interface. For examples of communication controllers
    with their corresponding Internet interfaces, refer to the
    LIST COMMUNICATION_CONTROLLER command. For more information on
    configuring network interfaces, refer to the HP TCP/IP Services
    for OpenVMS Management manual.