ARP(8C)                              BSD                               ARP(8C)



NAME
     arp - address resolution display and control

SYNOPSIS
     arp hostname
     arp -a
     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(4p)).

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

OPTIONS
     -a        Display all of the current ARP entries in the internal file.

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

     -s hostname ether_addr [ temp ] [ pub ] [ trail ]
               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 you specify the word temp in the command. If you specify
               the word pub, 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.  The word
               trail indicates that trailer encapsulations may be sent to this
               host.

     -f filename
               Read the file filename and set multiple entries 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.

NOTES
     ETHERNET is a registered trademark of Xerox Corporation.

SEE ALSO
     inet(3N), arp(4P), ifconfig(8C);
     Configuring and Managing TCP/IP.