/sys$common/syshlp/helplib.hlb RPC, rpccp, remove_mapping, OPTIONS  *Conan The Librarian (sorry for the slow response - running on an old VAX)

         -b Declares a string binding (required).  You must also
            specify an interface identifier (using the -i option).
            Each command accepts up to 32 -b options.

            The value has the form of an RPC string binding, without
            an object UUID, for example:

            -b ncadg_ip_udp:63.0.2.17[5347]

            Note that depending on your system, string binding
            delimiters such as brackets ([ ]) may need to be preceded
            by an escape symbol (\) or placed within quotation marks
            (' ' or " "). Requirements vary from system to system,
            and you must conform to the usage rules of a system.

         -i Declares an interface identifier (required).  Only one
            interface can be removed in a single operation.  The
            interface identifier has the following form:

            interface-uuid,major-version.minor-version