Lorenzo Colitti | 313379e | 2013-07-11 01:07:11 +0900 | [diff] [blame] | 1 | <refentry id="rarpd"> |
| 2 | |
| 3 | <refmeta> |
| 4 | <refentrytitle>rarpd</refentrytitle> |
| 5 | <manvolnum>8</manvolnum> |
| 6 | <refmiscinfo>iputils-&snapshot;</refmiscinfo> |
| 7 | </refmeta> |
| 8 | |
| 9 | <refnamediv> |
| 10 | <refname>rarpd</refname> |
| 11 | <refpurpose>answer RARP REQUESTs</refpurpose> |
| 12 | </refnamediv> |
| 13 | |
| 14 | <refsynopsisdiv> |
| 15 | <cmdsynopsis> |
| 16 | <command>arping</command> |
| 17 | <arg choice="opt"><option>-aAvde</option></arg> |
| 18 | <arg choice="opt">-b <replaceable/bootdir/</arg> |
| 19 | <arg choice="opt"><replaceable/interface/</arg> |
| 20 | </cmdsynopsis> |
| 21 | </refsynopsisdiv> |
| 22 | |
| 23 | <refsect1><title>DESCRIPTION</title> |
| 24 | <para> |
| 25 | Listens |
| 26 | <ulink url="http://tools.ietf.org/rfc/rfc903.txt">RARP</ulink> |
| 27 | requests from clients. Provided MAC address of client |
| 28 | is found in <filename>/etc/ethers</filename> database and |
| 29 | obtained host name is resolvable to an IP address appropriate |
| 30 | for attached network, <command/rarpd/ answers to client with RARPD |
| 31 | reply carrying an IP address. |
| 32 | </para> |
| 33 | <para> |
| 34 | To allow multiple boot servers on the network <command/rarpd/ |
| 35 | optionally checks for presence Sun-like bootable image in TFTP directory. |
| 36 | It should have form <userinput/Hexadecimal_IP.ARCH/, f.e. to load |
| 37 | sparc 193.233.7.98 <filename/C1E90762.SUN4M/ is linked to |
| 38 | an image appropriate for SUM4M in directory <filename>/etc/tftpboot</filename>. |
| 39 | </para> |
| 40 | </refsect1> |
| 41 | |
| 42 | <refsect1><title>WARNING</title> |
| 43 | <para> |
| 44 | This facility is deeply obsoleted by |
| 45 | <ulink url="http://tools.ietf.org/rfc/rfc951.txt">BOOTP</ulink> |
| 46 | and later |
| 47 | <ulink url="http://tools.ietf.org/rfc/rfc2131.txt">DHCP</ulink> protocols. |
| 48 | However, some clients really still need this to boot. |
| 49 | </para> |
| 50 | </refsect1> |
| 51 | |
| 52 | |
| 53 | <refsect1><title>OPTIONS</title> |
| 54 | |
| 55 | <variablelist> |
| 56 | |
| 57 | <varlistentry> |
| 58 | <term><option/-a/</term> |
| 59 | <listitem><para> |
| 60 | Listen on all the interfaces. Currently it is an internal |
| 61 | option, its function is overridden with <replaceable/interface/ |
| 62 | argument. It should not be used. |
| 63 | </para></listitem> |
| 64 | </varlistentry> |
| 65 | |
| 66 | <varlistentry> |
| 67 | <term><option/-A/</term> |
| 68 | <listitem><para> |
| 69 | Listen not only RARP but also ARP messages, some rare clients |
| 70 | use ARP by some unknown reason. |
| 71 | </para></listitem> |
| 72 | </varlistentry> |
| 73 | |
| 74 | <varlistentry> |
| 75 | <term><option/-v/</term> |
| 76 | <listitem><para> |
| 77 | Be verbose. |
| 78 | </para></listitem> |
| 79 | </varlistentry> |
| 80 | |
| 81 | <varlistentry> |
| 82 | <term><option/-d/</term> |
| 83 | <listitem><para> |
| 84 | Debug mode. Do not go to background. |
| 85 | </para></listitem> |
| 86 | </varlistentry> |
| 87 | |
| 88 | <varlistentry> |
| 89 | <term><option/-e/</term> |
| 90 | <listitem><para> |
| 91 | Do not check for presence of a boot image, reply if MAC address |
| 92 | resolves to a valid IP address using <filename>/etc/ethers</filename> |
| 93 | database and DNS. |
| 94 | </para></listitem> |
| 95 | </varlistentry> |
| 96 | |
| 97 | <varlistentry> |
| 98 | <term><option>-b <replaceable/bootdir/</option></term> |
| 99 | <listitem><para> |
| 100 | TFTP boot directory. Default is <filename>/etc/tftpboot</filename> |
| 101 | </para></listitem> |
| 102 | </varlistentry> |
| 103 | </variablelist> |
| 104 | </refsect1> |
| 105 | |
| 106 | <refsect1><title>SEE ALSO</title> |
| 107 | <para> |
| 108 | <link linkend="arping"> |
| 109 | <citerefentry><refentrytitle/arping/<manvolnum/8/</citerefentry></link>, |
| 110 | <link linkend="tftpd"> |
| 111 | <citerefentry><refentrytitle/tftpd/<manvolnum/8/</citerefentry></link>. |
| 112 | </para> |
| 113 | </refsect1> |
| 114 | |
| 115 | <refsect1><title>AUTHOR</title> |
| 116 | <para> |
| 117 | <command/rarpd/ was written by |
| 118 | <ulink url="mailto:kuznet@ms2.inr.ac.ru">Alexey Kuznetsov |
| 119 | <kuznet@ms2.inr.ac.ru></ulink>. |
| 120 | It is now maintained by |
| 121 | <ulink url="mailto:yoshfuji@skbuff.net">YOSHIFUJI Hideaki |
| 122 | <yoshfuji@skbuff.net></ulink>. |
| 123 | </para> |
| 124 | </refsect1> |
| 125 | |
| 126 | <refsect1><title>SECURITY</title> |
| 127 | <para> |
| 128 | <command/rarpd/ requires <constant/CAP_NET_RAW/ capability |
| 129 | to listen and send RARP and ARP packets. It also needs <constant/CAP_NET_ADMIN/ |
| 130 | to give to kernel hint for ARP resolution; this is not strictly required, |
| 131 | but some (most of, to be more exact) clients are so badly broken that |
| 132 | are not able to answer ARP before they are finally booted. This is |
| 133 | not wonderful taking into account that clients using RARPD in 2002 |
| 134 | are all unsupported relic creatures of 90's and even earlier. |
| 135 | </para> |
| 136 | </refsect1> |
| 137 | |
| 138 | <refsect1><title>AVAILABILITY</title> |
| 139 | <para> |
| 140 | <command/rarpd/ is part of <filename/iputils/ package |
| 141 | and the latest versions are available in source form at |
| 142 | <ulink url="http://www.skbuff.net/iputils/iputils-current.tar.bz2"> |
| 143 | http://www.skbuff.net/iputils/iputils-current.tar.bz2</ulink>. |
| 144 | </para> |
| 145 | </refsect1> |
| 146 | |
| 147 | <![IGNORE[ |
| 148 | <refsect1><title>COPYING</title> |
| 149 | <para> |
| 150 | <literallayout> |
| 151 | This documentation is free software; you can redistribute |
| 152 | it and/or modify it under the terms of the GNU General Public |
| 153 | License Version 2. |
| 154 | |
| 155 | This program is distributed in the hope that it will be |
| 156 | useful, but WITHOUT ANY WARRANTY; without even the implied |
| 157 | warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 158 | See the GNU General Public License for more details. |
| 159 | |
| 160 | For more details see the file COPYING in the source |
| 161 | distribution of Linux kernel of version 2.4. |
| 162 | </literallayout> |
| 163 | </para> |
| 164 | </refsect1> |
| 165 | ]]> |
| 166 | |
| 167 | |
| 168 | |
| 169 | |
| 170 | </refentry> |