arp(1M)                      UNIX System V(TPC/IP)                      arp(1M)


NAME
      arp - address resolution display and control

SYNOPSIS
      arp hostname

      arp -a [ unix [ kmem ] ]

      arp -d hostname

      arp -s hostname ether_address [ temp ] [ pub ] [ trail ]

      arp -f filename

DESCRIPTION
      The arp program displays and modifies the Internet-to-Ethernet address
      translation tables used by the address resolution protocol [arp(7)].

      With no flags, the program displays the current ARP entry for hostname.
      The host may be specified by name or by number, using Internet dot
      notation.

      The following options are available:

      -a    Display all of the current ARP entries by reading the table from
            the file kmem (default /dev/kmem) based on the kernel file unix
            (default /stand/unix).

      -d    Delete an entry for the host called hostname.  This option may only
            be used by the super-user.

      -s    Create an ARP entry for the host called hostname with the Ethernet
            address ether_address.  The Ethernet address is given as six
            hexadecimal bytes separated by colons.  The entry will be permanent
            unless the word temp is given in the command.  If the word pub is
            given, the entry will be published, for instance, this system will
            respond to ARP requests for hostname even though the hostname is
            not its own.  The word trail indicates that trailer encapsulations
            may be sent to this host.

      -f    Read the file named filename and set multiple entries in the ARP
            tables.  Entries in the file should be of the form

                  hostname ether_address [ temp ] [ pub ] [ trail ]

            with argument meanings as given above.

SEE ALSO
      ifconfig(1M), arp(7).





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