1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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5 | %general-entities;
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6 |
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7 | <!ENTITY ethereal-download-http "http://www.ethereal.com/distribution/ethereal-ðereal-version;.tar.bz2">
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8 | <!ENTITY ethereal-download-ftp "ftp://ftp.ethereal.com/pub/ethereal/all-versions/ethereal-ðereal-version;.tar.bz2">
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9 | <!ENTITY ethereal-md5sum "eebd6cc45a45d68332b2c053aac0c484">
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10 | <!ENTITY ethereal-size "5.1 MB">
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11 | <!ENTITY ethereal-buildsize "179 MB">
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12 | <!ENTITY ethereal-time "3.61 SBU">
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13 | ]>
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14 |
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15 | <sect1 id="ethereal" xreflabel="Ethereal-ðereal-version;">
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16 | <sect1info>
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17 | <othername>$LastChangedBy$</othername>
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18 | <date>$Date$</date>
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19 | </sect1info>
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20 | <?dbhtml filename="ethereal.html"?>
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21 | <title>Ethereal-ðereal-version;</title>
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22 |
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23 | <sect2>
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24 | <title>Introduction to <application>Ethereal</application></title>
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25 |
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26 | <para>The <application>Ethereal</application> package contains a network
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27 | protocol analyzer, also known as a <quote>sniffer</quote>. This is useful for
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28 | analyzing data captured <quote>off the wire</quote> from a live network
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29 | connection, or data read from a capture file.
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30 | <application>Ethereal</application> provides both <acronym>GUI</acronym> and
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31 | <acronym>TTY</acronym>-mode programs for examining captured network packets
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32 | from over 500 protocols, as well as the capability to read capture files from
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33 | many other popular network analyzers.</para>
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34 |
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35 | <sect3><title>Package information</title>
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36 | <itemizedlist spacing="compact">
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37 | <listitem><para>Download (HTTP):
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38 | <ulink url="ðereal-download-http;"/></para></listitem>
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39 | <listitem><para>Download (FTP):
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40 | <ulink url="ðereal-download-ftp;"/></para></listitem>
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41 | <listitem><para>Download MD5 Sum: ðereal-md5sum;</para></listitem>
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42 | <listitem><para>Download size: ðereal-size;</para></listitem>
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43 | <listitem><para>Estimated disk space required:
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44 | ðereal-buildsize;</para></listitem>
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45 | <listitem><para>Estimated build time:
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46 | ðereal-time;</para></listitem></itemizedlist>
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47 | </sect3>
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48 |
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49 | <sect3><title><application>Ethereal</application> dependencies</title>
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50 | <sect4><title>Required</title>
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51 | <para><xref linkend="GLib"/> or <xref linkend="glib2"/> (to build the
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52 | <acronym>TTY</acronym>-mode front-end only)</para>
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53 | </sect4>
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54 |
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55 | <sect4><title>Recommended</title>
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56 | <para><xref linkend="libpcap"/> (required to capture data)</para>
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57 | </sect4>
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58 |
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59 | <sect4><title>Optional</title>
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60 | <para><xref linkend="pkgconfig"/>,
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61 | <xref linkend="GTK"/> or <xref linkend="gtk2"/> (to build the
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62 | <acronym>GUI</acronym> front-end),
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63 | <xref linkend="openssl"/>,
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64 | <xref linkend="heimdal"/> or <xref linkend="mitkrb"/>,
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65 | <xref linkend="python"/>,
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66 | <xref linkend="pcre"/>,
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67 | <xref linkend="doxygen"/>,
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68 | <ulink url="http://www.net-snmp.org/">Net-SNMP</ulink> and
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69 | <ulink url="http://www.gnu.org/software/adns/adns.html">adns</ulink></para>
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70 | </sect4>
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71 | </sect3>
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72 |
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73 | </sect2>
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74 |
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75 | <sect2>
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76 | <title>Installation of <application>Ethereal</application></title>
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77 |
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78 | <para>Install <application>Ethereal</application> by running the following
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79 | commands:</para>
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80 |
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81 | <screen><userinput><command>./configure --prefix=/usr --sysconfdir=/etc \
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82 | --enable-randpkt --enable-threads &&
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83 | make &&
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84 | make install</command></userinput></screen>
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85 |
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86 | </sect2>
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87 |
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88 | <sect2>
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89 | <title>Command explanations</title>
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90 |
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91 | <para><option>--enable-randpkt</option>: This parameter builds the random
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92 | capture program.</para>
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93 |
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94 | <para><option>--enable-threads</option>: This parameter enables the use
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95 | of threads in <command>ethereal</command>.</para>
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96 |
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97 | </sect2>
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98 |
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99 | <sect2>
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100 | <title>Configuring <application>Ethereal</application></title>
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101 |
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102 | <sect3><title>Config files</title>
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103 | <para><filename>/etc/ethereal.conf</filename> and
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104 | <filename>~/.ethereal/preferences</filename></para>
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105 | </sect3>
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106 |
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107 | <sect3><title>Configuration Information</title>
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108 | <sect4><title>Package configuration</title>
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109 | <para>Though the default configuration parameters are very sane,
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110 | reference the configuration section of the
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111 | <ulink url="http://www.ethereal.com/docs/user-guide/">Ethereal User's
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112 | Guide</ulink> for configuration information. Most of
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113 | <application>Ethereal</application>'s configuration can be accomplished
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114 | using the menu options of the <command>ethereal</command>
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115 | <acronym>GUI</acronym> interface.</para>
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116 | </sect4>
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117 |
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118 | <sect4><title>Kernel configuration</title>
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119 | <para>The kernel must have the Packet protocol enabled for
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120 | <application>Ethereal</application> to capture live packets from the network.
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121 | Enable the Packet protocol by choosing <quote>Y</quote> in the
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122 | <quote>Device Drivers</quote> – <quote>Networking support</quote>
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123 | – <quote>Networking options</quote> – <quote>Packet socket</quote>
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124 | configuration parameter. Alternatively, build the af_packet module by choosing
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125 | <quote>M</quote> in this parameter.</para>
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126 |
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127 | <para>Note: If you want to look at packets, make sure you don't filter
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128 | them out with <xref linkend="iptables"/>. If you want to exclude
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129 | certain classes of packets, it is more efficient to do it with
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130 | <application>iptables</application> than
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131 | <application>Ethereal</application>.</para>
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132 | </sect4>
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133 | </sect3>
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134 |
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135 | </sect2>
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136 |
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137 | <sect2>
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138 | <title>Contents</title>
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139 |
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140 | <para>The <application>Ethereal</application> package contains
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141 | <command>capinfos</command>,
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142 | <command>dftest</command>,
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143 | <command>editcap</command>,
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144 | <command>ethereal</command>,
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145 | <command>idl2eth</command>,
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146 | <command>mergecap</command>,
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147 | <command>randpkt</command>,
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148 | <command>tethereal</command>,
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149 | <command>text2pcap</command>,
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150 | <filename class='libraryfile'>libethereal</filename>,
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151 | <filename class='libraryfile'>libwiretap</filename> and
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152 | many dissector plugin modules.</para>
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153 |
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154 | </sect2>
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155 |
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156 | <sect2><title>Description</title>
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157 |
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158 | <sect3><title>capinfos</title>
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159 | <para><command>capinfos</command> reads a saved capture file and returns any or
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160 | all of several statistics about that file. It is able to detect and read any
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161 | capture supported by the <application>Ethereal</application> package.</para>
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162 | </sect3>
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163 |
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164 | <sect3><title>dftest</title>
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165 | <para><command>dftest</command> is a display-filter-compiler test
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166 | program.</para>
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167 | </sect3>
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168 |
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169 | <sect3><title>editcap</title>
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170 | <para><command>editcap</command> edits and/or translates the format of capture
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171 | files. It knows how to read <application>libpcap</application> capture files,
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172 | including those of <command>tcpdump</command>,
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173 | <application>Ethereal</application> and other tools that write captures in that
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174 | format.</para>
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175 | </sect3>
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176 |
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177 | <sect3><title>ethereal</title>
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178 | <para><command>ethereal</command> is a <acronym>GUI</acronym> network protocol
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179 | analyzer. It lets you interactively browse packet data from a live network or
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180 | from a previously saved capture file.</para>
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181 | </sect3>
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182 |
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183 | <sect3><title>idl2eth</title>
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184 | <para><command>idl2eth</command> takes a user specified
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185 | <acronym>CORBA</acronym> <acronym>IDL</acronym> file and generates
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186 | <quote>C</quote> source code that can be used to create an
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187 | <application>Ethereal</application> plugin.</para>
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188 | </sect3>
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189 |
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190 | <sect3><title>mergecap</title>
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191 | <para><command>mergecap</command> combines multiple saved capture files into a
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192 | single output file.</para>
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193 | </sect3>
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194 |
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195 | <sect3><title>randpkt</title>
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196 | <para><command>randpkt</command> creates random-packet capture files.</para>
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197 | </sect3>
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198 |
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199 | <sect3><title>tethereal</title>
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200 | <para><command>tethereal</command> is a <acronym>TTY</acronym>-mode network
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201 | protocol analyzer. It lets you capture packet data from a live network or
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202 | read packets from a previously saved capture file.</para>
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203 | </sect3>
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204 |
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205 | <sect3><title>text2pcap</title>
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206 | <para><command>text2pcap</command> reads in an <acronym>ASCII</acronym> hex
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207 | dump and writes the data described into a
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208 | <application>libpcap</application>-style capture file.</para>
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209 | </sect3>
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210 |
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211 | </sect2>
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212 |
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213 | </sect1>
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214 |
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