arp

 

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 Maintenance Commands                                      arp(1M)
 
 
 


NAME
      arp - address resolution display and control
 


SYNOPSIS
      arp hostname
 
      arp -a
 
      arp -d hostname
 
      arp -f filename
 
      arp -s hostname  ether_address  [ temp ]  [ pub ]  [ trail ]
 


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


OPTIONS
      -a    Display all of the current ARP entries. The definition
            for the flags in the table are:
 
            P     Publish; includes IP address for the machine and
                  the  addresses  that have  explicitly been added
                  by the  -s  option.  ARP  will  respond  to  ARP
                  requests  for this address.
 
            S     Static; not learned for the ARP protocol.
 
            U     Unresolved; waiting for ARP response.
 
            M     Mapping; only used for the multicast  entry  for
                  224.0.0.0
 
 
      -d    Delete an entry for the  host  called  hostname.  This
            option may only be used by the super-user.
 
      -f    Read the file named filename and set multiple  entries
            in  the  ARP tables.  Entries in the file should be of
            the form
 
            hostname ether_address [ temp ] [ pub ] [ trail ]
 
 
            (see option  -s for argument definitions).
 
 
 
 
 SunOS 5.8           Last change: 19 Feb 1995                    1
 
 
 
 
 
 
 Maintenance Commands                                      arp(1M)
 
 
 
      -s    Create an ARP entry for the host called hostname  with
            the   Ethernet  address  ether_address.  The  Ethernet
            address is given as six hexadecimal 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. For instance, this
            system will respond to ARP requests for hostname  even
            though  the  hostname  is  not its own. The word trail
            indicates that trailer encapsulations may be  sent  to
            this  host.  arp - s can be used for a limited form of
            proxy  ARP when a host on one of the directly attached
            network  is  not  physically  present  on the subnet.
            Another machine can then be configured to  respond  to
            ARP  requests using  arp -s. This is useful in certain
            SLIP or  PPP configurations.
 


ATTRIBUTES
      See attributes(5) for descriptions of the  following  attri-
      butes:
 
      ____________________________________________________________
     |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
     |_____________________________|_____________________________|
     | Availability                | SUNWcsu                     |
     |_____________________________|_____________________________|
 
 


SEE ALSO
      ifconfig(1M), arp(7P), attributes(5)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 SunOS 5.8           Last change: 19 Feb 1995                    2
 
 
 

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