TCPIP$UCP_HELP.HLB  —  ifconfig  PARAMETERS
    abort      Closes all TCP connections associated with a network
               address. Use this parameter when removing aliases or
               deleting network addresses. This prevents connections
               from hanging when the network address is deleted.

    alias alias_address[/bitmask]
               Establishes an additional network address for this
               interface. This can be useful when changing network
               numbers and you want to continue to accept packets
               addressed to the old interface.

               If you do not specify a bitmask or netmask with the
               alias address, the default netmask is based on the
               alias address's network class.

               If you are using the optional bitmask argument, do not
               use the netmask argument.

               This parameter has the following restrictions:

               o  You can specify only one alias alias_address
                  parameter for each ifconfig command line.

               o  You cannot specify an alias and a primary address on
                  the same command line.

    -alias alias_address
               Removes the network address specified. This can be
               used either if you incorrectly specified an alias or
               if an alias is no longer needed. The -alias parameter
               functions in the same manner as the delete parameter.

    aliaslist address_list[/bitmask]
               Establishes a range of additional network addresses for
               this interface. The range can be a comma-separated list
               or a hyphenated list, and is inclusive. You can also
               specify the optional CIDR bitmask (/bitmask) argument
               at the end of the list. Do not use a comma-separated
               list and a hyphenated list for a range. (IPv4 only)

    -aliaslist
               Removes a range of network addresses for this
               interface. This can be useful when deleting network
               numbers and you want to keep the primary interface
               address. The alias list rules are the same as for the
               aliaslist parameter. (IPv4 only)

    allmulti   Enables the reception of all multicast packets.

    -allmulti
               Disables the reception of all multicast packets.

    arp        Enables the use of the Address Resolution Protocol
               (ARP) in mapping between network-level addresses and
               link-level addresses. This parameter is on by default.

    -arp       Disables the use of the ARP. Use of this parameter is
               not recommended.

    broadcast broad_address
               Specifies the address to use to represent broadcasts
               to the network. The default broadcast address is
               the address with a host part consisting of all 1s
               (ones). Note that the computation of the host part
               is dependent on netmask. (See the description of the
               netmask parameter for more information).

    delete [net_address]
               Removes the network address specified. Use this
               parameter if you incorrectly specified an alias, or
               if it was no longer needed. If you incorrectly set an
               NS address, specifying the host portion, remove all NS
               addresses to respecify the host portion.

               If no address is specified, all network addresses for
               the interface are deleted.

               Be careful when you use this parameter. If you either
               specify the network address before the delete parameter
               or specify no network address after the delete
               parameter, all IPv4 and IPv6 network addresses for
               the interface and IPv6 routes are deleted. IPv4 routes
               are not deleted.

    down       Marks an interface as not working (down), which keeps
               the system from trying to transmit messages through
               that interface. If possible, the ifconfig command
               also resets the interface to disable reception of
               messages. Routes that use the interface, however, are
               not automatically disabled.

    ip6dadtries value
               Specifies the number of consecutive Neighbor
               Solicitation messages that your system transmits while
               it performs Duplicate Address Detection on a tentative
               address. (IPv6 only)

    ip6hoplimit hops
               Sets the default number of hops to be included in
               transmitted unicast IP packets. (IPv6 only)

    ip6interfaceid id
               Overrides that default interface ID, which depends on
               the underlying link type (for example, Ethernet, FDDI,
               and Token Ring), and specifies id as the interface
               ID. For example, if your system has the Ethernet
               hardware address 08-00-2b-2a-1e-d3, the following
               command generates the inet6 link-local address
               fe80::a00:2bff:fe2a:1ed3 for the interface:

               ifconfig ln0 ipv6

               On the same system, the following command generates the
               IPv6 interface ID abcd:1234 for the interface:

               ifconfig ln0 ip6interfaceid ::abcd:1234 ipv6

               (IPv6 only)

    ip6mtu mtu_value
               Alters the maximum transfer unit (MTU) for messages
               that your system transmits on the link. (IPv6 only)

    ip6nonud   Disables Neighbor Unreachability Detection (NUD) on the
               interface. (IPv6 only)

    ip6reachabletime time
               Sets the time, in milliseconds, that your system con
               siders a neighbor is reachable after your system
               receives a reachability confirmation message. (IPv6
               only)

    ip6retranstimer value
               Sets the time interval, in milliseconds, between
               Neighbor Solicitation messages to a neighbor. (IPv6
               only)

    ipmtu mtu_value
               Alters the size of the maximum transfer unit (MTU)
               for messages that your system transmits. It might
               be necessary to reduce the MTU size so that bridges
               connecting token rings can transfer frames without
               error.

    ipv6       Initializes IPv6-related data structures and assigns an
               IPv6 link-local address to the interface. (IPv6 only)

    -ipv6      Removes any IPv6 configuration associated with the
               interface, including all IPv6 addresses and IPv6
               routes through the interface. This is equivalent to
               the following command:

               ifconfig interface inet6d delete

               (IPv6 only)

    metric number
               Sets the routing metric, or number of hops, for the
               interface to the value of number. The default value
               is 0 (zero) if number is not specified, indicating
               that both hosts are on the same network. The routing
               metric is used by ROUTED and GATED, with higher metrics
               indicating that the route is less favorable.

    ndna [ address ]
               Sends an unsolicited ICMPv6, Neighbor Advertisement
               for each address configured on the interface. If the
               address is provided, then send a Neighbor Advertisment
               for the specified address only. If a DNS alias is used
               as the address, a Neighbor Advertisement is sent for
               each address that comprises the DNS alias name. (IPv6
               only)

    netmask mask
               Specifies how much of the address to reserve for
               subdividing networks into sub-networks. This parameter
               can only be used with an address family of inet. Do not
               use this parameter if you are specifying the CIDR mask
               (/bitmask) with the address argument, alias parameter,
               or aliaslist parameter.

               The mask variable includes both the network part of
               the local address and the subnet part, which is taken
               from the host field of the address. The mask can be
               specified as a single hexadecimal number beginning with
               0x, in the standard Internet dotted-decimal notation,
               or beginning with a name.

               The mask contains 1s (ones) for the bit positions in
               the 32-bit address that are reserved for the network
               and subnet parts, and 0s (zeros) for the bit positions
               that specify the host. The mask should contain at least
               the standard network portion.

               The default netmask is based on the address parameter's
               network class. (IPv4 only)

    up         Marks an interface as working (up). This parameter is
               used automatically when setting the first address for
               an interface, or can be used to enable an interface
               after an ifconfig down command. If the interface was
               reset when previously marked with the parameter down
               (see the following section for a description of this
               parameter), the hardware will be reinitialized.
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