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<td width="80%" align="center" valign="bottom">Chapter 13 Basic Network Commands</td>
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<h1 class="SECT1"><a id="BASIC-NETWORK-COMMANDS-TRACEROUTE"
name="BASIC-NETWORK-COMMANDS-TRACEROUTE">13.2 <tt
class="COMMAND">traceroute</tt></a></h1>
<p>Slackware's <tt class="COMMAND">traceroute</tt>(8) command is a very useful network
diagnostic tool. <tt class="COMMAND">traceroute</tt> displays each host that a packet
travels through as it tries to reach its destination. You can see how many
“hops” from the Slackware web site you are with this command:</p>
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<samp class="PROMPT">%</samp> <kbd class="USERINPUT">traceroute www.slackware.com</kbd>
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<p>Each host will be displayed, along with the response times at each host. Here is an
example output:</p>
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<pre class="SCREEN">
<samp class="PROMPT">%</samp> <kbd class="USERINPUT">traceroute www.slackware.com</kbd>
traceroute to www.slackware.com (204.216.27.13), 30 hops max, 40 byte packets
1 zuul.tdn (192.168.1.1) 0.409 ms 1.032 ms 0.303 ms
2 207.171.227.254 (207.171.227.254) 18.218 ms 32.873 ms 32.433 ms
3 border-sf-2-0-4.sirius.com (205.134.230.254) 15.662 ms 15.731 ms 16.142 ms
4 pb-nap.crl.net (198.32.128.20) 20.741 ms 23.672 ms 21.378 ms
5 E0-CRL-SFO-03-E0X0.US.CRL.NET (165.113.55.3) 22.293 ms 21.532 ms 21.29 ms
6 T1-CDROM-00-EX.US.CRL.NET (165.113.118.2) 24.544 ms 42.955 ms 58.443 ms
7 www.slackware.com (204.216.27.13) 38.115 ms 53.033 ms 48.328 ms
</pre>
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<p><tt class="COMMAND">traceroute</tt> is similar to <tt class="COMMAND">ping</tt> in
that it uses ICMP packets. There are several options that you can specify with <tt
class="COMMAND">traceroute</tt>. These options are explained in detail in the man
page.</p>
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