VMS Help TCPIP Services, Programming Interfaces, RPC Client Routines, get_myaddr_dest, Description  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Since the local host may have multiple network addresses (each
    on its own interface), this routine is used to select the local
    address which would provide a connection to the remote address
    specified in dest.

    This is an alternative to gethostbyname, which invokes yellow
    pages. It takes a destination (where we are trying to get to) and
    finds an exact network match to go to.