VMS Help LANCP, DEFINE, DEVICE, Qualifiers, /CLIP  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    On Alpha systems, defines the Classical Internet Protocol (CLIP)
    over ATM (RFC1577). The CLIP qualifier implements a data-link
    level device as a client and/or a server in a logical IP subnet
    (LIS). This allows the IP protocol to transmit Ethernet frames
    over the ATM network. The /CLIP = ENABLE command causes the
    system to join the LIS. The /CLIP = DISABLE command causes the
    client to leave the logical IP subnet.

    Note that a LIS requires a server, and there must be only one
    server for each subnet. Communication between subnets can only be
    performed by a router. There can only be one client for each ATM
    adapter.

    The /CLIP qualifier's syntax with standard Internet dotted
    notation is as follows:

    DEFINE DEVICE/CLIP =(ip_subnet=a.b.c.d,
                         ip_address=a.b.c.d,
                         parent=devnam,
                         name="ip subnet name",
                         enable, disable
                         type = client|server)

    The meanings for the syntax for /CLIP are as follows:

    Option       Meaning

    ip_address   Specifies the IP address of the CLIP client.
    ip_subnet    Specifies the subnet mask of the CLIP client.
    parent=devnamSpecifies the parent device name.
    name         Specifies a name for the LIS to aid in operations
                 and diagnostics.
    type=client  Starts up a classical IP client only. This is the
                 default.
    type=server  Starts up a classical IP server. Only one server
                 for each LIS is allowed, and the server needs to be
                 started first.
    type=(server,Starts)up a classical IP server and client.

    Keywords and their meaning for /CLIP are as follows:

    Keyword  Meaning

    Enable   Joins the logical IP subnet.
    Disable  Causes a client to leave the logical IP subnet.