1    /ARP

       /ARP
       /NOARP

    Optional. Default: /ARP.

    Enables IP address-to-hardware address (Ethernet or FDDI)
    mapping.

    /ARP is valid when you create an interface but not when you
    modify an existing interface.

2    /AUTO_START

       /AUTO_START
       /NOAUTO_START

    Optional. Default: /AUTO_START.

    Valid for a SLIP or PPP interface. Automatically creates the
    interface when TCP/IP Services starts.

3    /BROADCAST_MASK

       /BROADCAST_MASK=IP_address

    Optional.

    Sets the Internet interface to receive all broadcast messages.

    TCP/IP Services calculates the default by the following methods:

    o  Using the network number

    o  Setting all bits in the host number field to 1

4    /C_BROADCAST_MASK

       /C_BROADCAST_MASK=IP_address

    Optional.

    Sets the cluster broadcast mask to receive all broadcast
    messages.

    The software calculates the default by the following methods:

    o  Using the network number

    o  Setting all bits in the host number field to 1

5    /C_NETWORK

       /C_NETWORK=IP_address

    Optional.

    Sets the network mask of the cluster network. This mask is
    specific to the cluster host network.

    The software calculates the default by using the following
    methods:

    o  Setting the bits representing the network fields to 1

    o  Setting the bits representing the host field to 0

6    /CLUSTER

       /CLUSTER=host
       /NOCLUSTER

    Optional. Default: None.

    Specifies the cluster host name (alias host identifier).

    Before using this qualifier, first define the same name in the
    hosts database.

    /CLUSTER=host associates the alias host identifier with each
    interface in a cluster.

    /NOCLUSTER disables Internet cluster processing on the specified
    interface.

                                 CAUTION

       When you specify /NOCLUSTER, active communication is aborted
       for applications bound to the cluster alias name.

7    /COMPRESS

       /COMPRESS= {ON | OFF | AUTOMATIC}

    Optional. Defaults: For PPP interface, /COMPRESS=ON; for SLIP
    interface, /COMPRESS=OFF.

    Valid for SLIP and PPP interfaces.

    Enables or disables TCP header compression.

    /COMPRESS=AUTOMATIC turns off compression unless the remote end
    begins to use it.

8    /DESTINATION

       /DESTINATION=IP_address

    Optional.

    Valid for a PPP interface.

    Used on the local host to provide dialup access to remote
    systems. The value specified is the IP address to be given to
    remote clients for use while the PPP connection is active. If
    using /DESTINATION, you must provide the address of the local
    host by using the /HOST qualifier.

9    /DHCP

       /DHCP
       /NODHCP

    Optional.

    Designates the interface as a DHCP-controlled interface in the
    permanent database.

10    /FLOWCONTROL

    Optional. Default: No flow control.

    Valid for a SLIP interface. Enables the handling of XON and
    XOFF characters to interoperate properly with modems that are
    configured to interpret these characters locally.

    Specify /FLOWCONTROL only if the host at the other end of the
    line is running TCP/IP Services.

11    /HOST

       /HOST=host

    Required when first setting the interface; optional if the
    interface is already defined. Always required for a SLIP
    interface. Optional for a PPP interface unless you are setting
    up the local host as a dialup provider by using the /DESTINATION
    qualifier.

    Local host name or IP address using the interface. If not
    specified for a PPP interface, PPP obtains the correct address
    from the remote host.

    If your host is multihomed, specify an address.

12    /LOOPBACK

       /LOOPBACK
       /NOLOOPBACK

    Optional. Default: /NOLOOPBACK.

    Sets loopback mode.

13    /NETWORK_MASK

       /NETWORK_MASK=IP_address

    Required if you use subnets.

    The part of the host field of the IP address identified as the
    subnet.

    The software calculates the default by the following methods:

    o  Setting the bits representing the network fields to 1

    o  Setting the bits representing the host field to 0

    An IP address consists of a network number and a host number. You
    can also divide the host field into a site-specific subnetwork
    and host field.

14    /PRIMARY

       /PRIMARY
       /NOPRIMARY

    Optional.

    For DHCP-controlled interfaces, designates the interface from
    which system-wide configuration options (such as the IP address
    of the BIND server) are used.

15    /SERIAL_DEVICE

       /SERIAL_DEVICE=device

    Required for SLIP and PPP interfaces; otherwise, not used.

    Identifies the OpenVMS terminal device used as a serial device.
    Specify an arbitrary terminal device name. (Unlike Ethernet,
    FDDI, and Token Ring interface names, a serial interface name is
    not related to the OpenVMS device name.)