Lorenzo Colitti | 313379e | 2013-07-11 01:07:11 +0900 | [diff] [blame] | 1 | <refentry id="pg3"> |
| 2 | |
| 3 | <refmeta> |
| 4 | <refentrytitle>pg3</refentrytitle> |
| 5 | <manvolnum>8</manvolnum> |
| 6 | <refmiscinfo>iputils-&snapshot;</refmiscinfo> |
| 7 | </refmeta> |
| 8 | |
| 9 | |
| 10 | <refnamediv> |
| 11 | <refname>pg3, ipg, pgset</refname> |
| 12 | <refpurpose>send stream of UDP packets</refpurpose> |
| 13 | </refnamediv> |
| 14 | |
| 15 | <refsynopsisdiv> |
| 16 | <cmdsynopsis> |
| 17 | <command>source ipg</command> |
| 18 | </cmdsynopsis> |
| 19 | <cmdsynopsis> |
| 20 | <command>pg</command> |
| 21 | </cmdsynopsis> |
| 22 | <cmdsynopsis> |
| 23 | <command>pgset</command> |
| 24 | <arg choice="req"><replaceable/COMMAND/</arg> |
| 25 | </cmdsynopsis> |
| 26 | </refsynopsisdiv> |
| 27 | |
| 28 | <refsect1><title>DESCRIPTION</title> |
| 29 | <para> |
| 30 | <command/ipg/ is not a program, it is script which should be sourced |
| 31 | to <command/bash/. When sourced it loads module <filename/pg3/ and |
| 32 | exports a few of functions accessible from parent shell. These macros |
| 33 | are <command/pg/ to start packet injection and to get the results of run; |
| 34 | and <command/pgset/ to setup packet generator. |
| 35 | </para> |
| 36 | |
| 37 | <para> |
| 38 | <command/pgset/ can send the following commands to module <filename/pg3/: |
| 39 | </para> |
| 40 | </refsect1> |
| 41 | |
| 42 | <refsect1><title>COMMAND</title> |
| 43 | |
| 44 | <variablelist> |
| 45 | |
| 46 | <varlistentry> |
| 47 | <term><option>odev <replaceable/DEVICE/</option></term> |
| 48 | <listitem><para> |
| 49 | Name of Ethernet device to test. See |
| 50 | <link linkend="pg3.warning">warning</link> below. |
| 51 | </para></listitem> |
| 52 | </varlistentry> |
| 53 | |
| 54 | <varlistentry> |
| 55 | <term><option>pkt_size <replaceable/BYTES/</option></term> |
| 56 | <listitem><para> |
| 57 | Size of packet to generate. The size includes all the headers: UDP, IP, |
| 58 | MAC, but does not account for overhead internal to medium, i.e. FCS |
| 59 | and various paddings. |
| 60 | </para></listitem> |
| 61 | </varlistentry> |
| 62 | |
| 63 | <varlistentry> |
| 64 | <term><option>frags <replaceable/NUMBER/</option></term> |
| 65 | <listitem><para> |
| 66 | Each packet will contain <replaceable/NUMBER/ of fragments. |
| 67 | Maximal amount for linux-2.4 is 6. Far not all the devices support |
| 68 | fragmented buffers. |
| 69 | </para></listitem> |
| 70 | </varlistentry> |
| 71 | |
| 72 | <varlistentry> |
| 73 | <term><option>count <replaceable/NUMBER/</option></term> |
| 74 | <listitem><para> |
| 75 | Send stream of <replaceable/NUMBER/ of packets and stop after this. |
| 76 | </para></listitem> |
| 77 | </varlistentry> |
| 78 | |
| 79 | <varlistentry> |
| 80 | <term><option>ipg <replaceable/TIME/</option></term> |
| 81 | <listitem><para> |
| 82 | Introduce artificial delay between packets of <replaceable/TIME/ |
| 83 | microseconds. |
| 84 | </para></listitem> |
| 85 | </varlistentry> |
| 86 | |
| 87 | <varlistentry> |
| 88 | <term><option>dst <replaceable/IP_ADDRESS/</option></term> |
| 89 | <listitem><para> |
| 90 | Select IP destination where the stream is sent to. |
| 91 | Beware, never set this address at random. <command/pg3/ is not a toy, |
| 92 | it creates really tough stream. Default value is 0.0.0.0. |
| 93 | </para></listitem> |
| 94 | </varlistentry> |
| 95 | |
| 96 | <varlistentry> |
| 97 | <term><option>dst <replaceable/MAC_ADDRESS/</option></term> |
| 98 | <listitem><para> |
| 99 | Select MAC destination where the stream is sent to. |
| 100 | Default value is 00:00:00:00:00:00 in hope that this will not be received |
| 101 | by any node on LAN. |
| 102 | </para></listitem> |
| 103 | </varlistentry> |
| 104 | |
| 105 | <varlistentry> |
| 106 | <term><option>stop</option></term> |
| 107 | <listitem><para> |
| 108 | Abort packet injection. |
| 109 | </para></listitem> |
| 110 | </varlistentry> |
| 111 | |
| 112 | </variablelist> |
| 113 | </refsect1> |
| 114 | |
| 115 | <refsect1 id="pg3.warning"><title>WARNING</title> |
| 116 | <para> |
| 117 | When output device is set to some random device different |
| 118 | of hardware Ethernet device, <command/pg3/ will crash kernel. |
| 119 | </para> |
| 120 | <para> |
| 121 | Do not use it on VLAN, ethertap, VTUN and other devices, |
| 122 | which emulate Ethernet not being real Ethernet in fact. |
| 123 | </para> |
| 124 | </refsect1> |
| 125 | |
| 126 | <refsect1><title>AUTHOR</title> |
| 127 | <para> |
| 128 | <command/pg3/ was written by <ulink url="mailto:robert.olsson@its.uu.se"> |
| 129 | Robert Olsson <robert.olsson@its.uu.se></ulink>. |
| 130 | </para> |
| 131 | </refsect1> |
| 132 | |
| 133 | <refsect1><title>SECURITY</title> |
| 134 | <para> |
| 135 | This can be used only by superuser. |
| 136 | </para> |
| 137 | <para> |
| 138 | This tool creates floods of packets which is unlikely to be handled |
| 139 | even by high-end machines. For example, it saturates gigabit link with |
| 140 | 60 byte packets when used with Intel's e1000. In face of such stream |
| 141 | switches, routers and end hosts may deadlock, crash, explode. |
| 142 | Use only in test lab environment. |
| 143 | </para> |
| 144 | </refsect1> |
| 145 | |
| 146 | <refsect1><title>AVAILABILITY</title> |
| 147 | <para> |
| 148 | <command/pg3/ is part of <filename/iputils/ package |
| 149 | and the latest versions are available in source form at |
| 150 | <ulink url="http://www.skbuff.net/iputils/iputils-current.tar.bz2"> |
| 151 | http://www.skbuff.net/iputils/iputils-current.tar.bz2</ulink>. |
| 152 | </para> |
| 153 | </refsect1> |
| 154 | |
| 155 | <![IGNORE[ |
| 156 | <refsect1><title>COPYING</title> |
| 157 | <para> |
| 158 | <literallayout> |
| 159 | This documentation is free software; you can redistribute |
| 160 | it and/or modify it under the terms of the GNU General Public |
| 161 | License Version 2. |
| 162 | |
| 163 | This program is distributed in the hope that it will be |
| 164 | useful, but WITHOUT ANY WARRANTY; without even the implied |
| 165 | warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 166 | See the GNU General Public License for more details. |
| 167 | |
| 168 | For more details see the file COPYING in the source |
| 169 | distribution of Linux kernel of version 2.4. |
| 170 | </literallayout> |
| 171 | </para> |
| 172 | </refsect1> |
| 173 | ]]> |
| 174 | |
| 175 | </refentry> |