ARP(1M)                                                   ARP(1M)



     NAME
          arp - address resolution display and control

     SYNOPSIS
          arp hostname
          arp -a [ vmunix ] [ kmem ]
          arp -d hostname
          arp -s hostname ether_addr [ 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(7p)).

          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.  With the -a flag, the
          program displays all of the current ARP entries by reading
          the table from the file kmem (default /dev/kmem) based on
          the kernel file vmunix (default /vmunix).

          With the -d flag, a super-user may delete an entry for the
          host called hostname.

          The -s flag is given to 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 entry will be permanent unless the word temp is
          given in the command. If the word pub is given, the entry
          will be "published"; i.e., this system will act as an ARP
          server, responding to requests for hostname even though the
          host address is not its own.  The word trail indicates that
          trailer encapsulations may be sent to this host.

          The -f flag causes 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 ] [ trail ]

          with argument meanings as given above.

     SEE ALSO
          inet(7P), arp(7P), ifconfig(1M)

     ORIGIN
          4.3 BSD







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