VMS Help TCPIP Services, Routing, GATED  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    GATED supports interior and exterior gateway protocols. It
    obtains information from several routing protocols and selects
    the best routes based on that information.

    Before enabling GATED, you must configure the GATED protocols
    by editing the file TCPIP$GATED.CONF. Use TCPIP$CONFIG to enable
    dynamic routing.

  Additional Information (explode) :

• GATED Protocols