arp(1M)                                                   arp(1M)



     NAME
          arp - address resolution display and control

     SYNOPSIS
          /etc/arp hostname
          /etc/arp -a [unix] [kmem]
          /etc/arp -d hostname
          /etc/arp -s hostname ether-addr [temp] [pub]
          /etc/arp -f filename

     DESCRIPTION
          The arp program displays and modifies the Internet-to-
          Ethernet address translation tables used by the address
          resolution protocol (see arp(5)).

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

          -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 /unix).

          -d   Delete an entry for the host called hostname.  Only the
               superuser can use this option.

          -s   Create an ARP entry for the host called hostname with
               the Ethernet address ether-addr.  The Ethernet address
               is given as six hex bytes separated by colons.  The en-
               try will be permanent unless the word temp is given in
               the command.  If the word pub is given, the entry will
               be ``published''; that is, this system will act as an
               ARP server, responding to requests for hostname even
               though the host address is not its own.

          -f   Cause the file filename to be read and multiple entries
               to be set in the ARP tables.  Entries in the file
               should be of the form

               hostname ether-addr [temp] [pub]

     FILES
          /etc/arp
          /dev/kmem

     SEE ALSO
          inet(3N), arp(5), ifconfig(1M).







     April, 1990                                                     1