1  arp
   SYNOPSIS

     arp [-u] hostname

     arp -a [-u] [system]

     arp -d hostname

     arp -s [-u] hostname hardware_addr [temp] [pub] ]


2  FLAGS

   -a                 Displays all of the current ARP entries.

   -d hostname        Deletes the entry for hostname if the user
                      issuing the command is a privileged user.

   -s hostname        Creates a single ARP entry for hostname. Use
   hardware_addr      of this flag requires privileges. Here:
   [temp] [pub]       hostname   Specifies the remote host
                                 identified by the entry.
                      hardware_  Specifies the hardware address
                      addr       of the remote host. The address
                                 is given as 6 hexadecimal bytes
                                 separated by colons.
                      temp       Specifies that this ARP table entry
                                 is temporary. When this argument
                                 is not used, the table entry is
                                 permanent.
                      pub        Indicates that the table entry will
                                 be published and that the current
                                 system will act as an ARP server,
                                 responding to requests for hostname
                                 even though the host address is not
                                 its own.

   [-u]               Displays the MAC address in noncanonical form
                      with address bytes reversed and separated by a
                      colon character (:). By default, all addresses
                      are displayed in canonical form with address
                      bytes separated by the hyphen character (-).

                      When used with the -s flag, this indicates
                      that the hardware_addr is in noncanonical
                      form.


2  DESCRIPTION
   The arp command displays or modifies the current ARP entry for
   the host specified by hostname. The host may be specified by name
   or number, using Internet dot notation.

   With no flags, the program displays the current ARP entry for
   hostname.

   The ARP tables can be displayed by any user, but only privileged
   user can modify them.