ARP(8)                  386BSD System Manager's Manual                  ARP(8)

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(4)).
     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.

     Available options:

     -a      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).

     -d      A super-user may delete an entry for the host called hostname
             with the -d flag.

     -s hostname ether_addr
             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.

     -f      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(3),  arp(4),  ifconfig(8)

HISTORY
     The arp command appeared in 4.3BSD.

4.3 Berkeley Distribution       March 16, 1991                               1