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RARPD(8)	       System Manager's Manual: iputils		      RARPD(8)

NAME
       rarpd - answer RARP REQUESTs

SYNOPSIS
       arping [-aAvde] [-b bootdir] [interface]

DESCRIPTION
       Listens	RARP  requests from clients. Provided MAC address of client is
       found in /etc/ethers database and obtained host name is	resolvable  to
       an IP address appropriate for attached network, rarpd answers to client
       with RARPD reply carrying an IP address.

       To allow multiple boot servers on the network rarpd  optionally	checks
       for presence Sun-like bootable image in TFTP directory.	It should have
       form   Hexadecimal_IP.ARCH,   f.e.   to	 load	 sparc	  193.233.7.98
       C1E90762.SUN4M is linked to an image appropriate for SUM4M in directory
       /etc/tftpboot.

WARNING
       This facility is deeply obsoleted by BOOTP and  later  DHCP  protocols.
       However, some clients really still need this to boot.

OPTIONS
       -a     Listen  on  all  the  interfaces.	 Currently  it	is an internal
	      option, its function is overridden with interface	 argument.  It
	      should not be used.

       -A     Listen  not  only	 RARP but also ARP messages, some rare clients
	      use ARP by some unknown reason.

       -v     Be verbose.

       -d     Debug mode. Do not go to background.

       -e     Do not check for presence of a boot image, reply if MAC  address
	      resolves	to  a  valid IP address using /etc/ethers database and
	      DNS.

       -b bootdir
	      TFTP boot directory. Default is /etc/tftpboot

SEE ALSO
       arping(8), tftpd(8).

AUTHOR
       rarpd was written by Alexey Kuznetsov  <kuznet@ms2.inr.ac.ru>.	It  is
       now maintained by YOSHIFUJI Hideaki <yoshfuji@skbuff.net>.

SECURITY
       rarpd  requires	CAP_NET_RAW capability to listen and send RARP and ARP
       packets. It also needs CAP_NET_ADMIN to give to	kernel	hint  for  ARP
       resolution;  this  is  not  strictly required, but some (most of, to be
       more exact) clients are so badly broken that are not able to answer ARP
       before  they  are  finally  booted.  This  is not wonderful taking into
       account that clients using RARPD in  2002  are  all  unsupported	 relic
       creatures of 90's and even earlier.

AVAILABILITY
       rarpd is part of iputils package and the latest versions are  available
       in   source    form    at    http://www.skbuff.net/iputils/iputils-cur‐
       rent.tar.bz2.

iputils-121221			24 January 2013			      RARPD(8)

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