# man > rarp(8)

[_RARP_(8)](https://www.chedong.com/phpMan.php/man/RARP/8/markdown)                          Linux System Administrator's Manual                         [_RARP_(8)](https://www.chedong.com/phpMan.php/man/RARP/8/markdown)

## NAME
       rarp - manipulate the system RARP table

## SYNOPSIS
### rarp [-V] [--version] [-h] [--help]
### rarp -a
### rarp [-v] -d hostname ...
### rarp [-v] [-t type] -s hostname hw_addr

## NOTE
       This  program  is  obsolete.  From version 2.3, the Linux kernel no longer contains RARP sup‐
       port.  For a replacement RARP daemon, see _ftp://ftp.dementia.org/pub/net-tools_

## DESCRIPTION
       **Rarp **manipulates the kernel's RARP table in various ways.  The primary options  are  clearing
       an  address mapping entry and manually setting up one.  For debugging purposes, the **rarp **pro‐
       gram also allows a complete dump of the RARP table.

## OPTIONS
### -V     

### -v     

### -t type
              When setting or reading the RARP table, this optional parameter tells **rarp **which class
              of entries it should check for.  The default value of this parameter  is  **ether  **(i.e.
              hardware  code  **0x01 **for **IEEE 802.3 10Mbps Ethernet .  **Other values might include net‐
              work technologies such as **AX.25 (ax25) **and **NET/ROM (netrom).**

### -a

       **--list **Lists the entries in the RARP table.

### -d hostname

### --delete hostname
              Remove all RARP entries for the specified host.

### -s hostname hw_addr

### --set hostname hw_addr
              Create a RARP address mapping entry for host **hostname **with  hardware  address  set  to
              **hw_addr**.   The  format of the hardware address is dependent on the hardware class, but
              for most classes one can assume that the usual presentation can be used.  For the Eth‐
              ernet class, this is 6 bytes in hexadecimal, separated by colons.

## WARNING
       Some systems (notably older Suns) assume that the host replying to a RARP query can also pro‐
       vide other remote boot services. Therefore never gratuitously add  rarp  entries  unless  you
       wish to meet the wrath of the network administrator.

## FILES
       _/proc/net/rarp,_

## SEE ALSO
       [**arp**(8)](https://www.chedong.com/phpMan.php/man/arp/8/markdown), [**route**(8)](https://www.chedong.com/phpMan.php/man/route/8/markdown), [**ifconfig**(8)](https://www.chedong.com/phpMan.php/man/ifconfig/8/markdown), [**netstat**(8)](https://www.chedong.com/phpMan.php/man/netstat/8/markdown)

## AUTHORS
       Ross D. Martin, <<martin@trcsun3.eas.asu.edu>>
       Fred N. van Kempen, <<waltje@uwalt.nl.mugnet.org>>
       Phil Blundell, <<Philip.Blundell@pobox.com>>

net-tools                                    2008-10-03                                      [_RARP_(8)](https://www.chedong.com/phpMan.php/man/RARP/8/markdown)