Library /sys$common/syshlp/nclhelp.hlb set, frame (OpenVMS), link, local_station_address  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Default: 255           Value: 0-255

    Address of the local station. The default value means that only
    broadcast messages are accepted. The interpretation of this
    characteristic is controlled by the value of the characteristic
    match station address.

    This attribute is supported only if the characteristic protocol
    is set to sdlc. You can modify this characteristic only when the
    entity is disabled.