The following supplemental resources are available to students.

<h1>Video Lectures</h1>

<p>The <a href="http://www.pearsonhighered.com/tanenbaum/">Pearson Tanenbaum page</a> provides access to video lectures that accompany the book. The videos play in a modern web browser (mp4). They are typically 10-20 minutes in length, and are organized into ten modules that cover a typical networking course with up to ten full weeks of content. In total, the 90 videos provide over 20 hours of lectures using more than 1000 slides.</p>


<h1>Computer Networks MOOC on Coursera</h1>

<p>The <a href="http://coursera.org/course/comnetworks">Computer Networks</a> MOOC on Coursera provides a free networking course based on Computer Networks 5/E.</p>

<h1>Handout on Message Latency</h1>

<p>The supplemental handout . </p>

<h1>Web Resources</h1>

<p>A collection of links to <a href="web-top">Web resources on computer networking</a>. </p>

<h1>Link Layer Protocol Simulator (Chapter 3)</h1>

<ul>
<li>For Linux (<a href="/tools/linux-cmdline.i386.tar.gz">binaries</a>, <a href="/tools/cmdline-source.tar.gz">source code</a>)</li>

<li>For Mac OS (<a href="/tools/mac-cmdline.x86_64.tar.gz">binaries</a>, <a href="/tools/cmdline-source.tar.gz">source code</a>)</li>
</ul>

<h1>Steganography Demo (Chapter 8)</h1>

<p>To try this demo you need a Windows 98/Me/NT/2000/XP/Vista computer. Please follow the instructions below.</p>

<ol>
<li>Download the zip file containing the <a href="/tools/steg.zip">steganography tools and image files</a>.
<li>Unzip the file steg.zip into an empty directory.
<li>Put a shortcut to S-tools.exe on your desktop.
<li>Drag the zebras.bmp file to your desktop. Do not make a shortcut; the file itself must be moved there.
<li>Start S-tools.exe by double clicking on the icon on the desktop. A window will appear.
<li>Drag the zebras.bmp file to the S-tools window.
<li>Right click on the zebras pictures and select Reveal from the menu.
<li>Fill in the 3-character pass phrase 'abc' (without the quotes) in two places. Leave IDEA as the encryption algorithm. Click on OK.
<li>Wait until the Revealed Archive dialog box appears. This may take a minute.
<li>Right click on any item and select Save As to save the file. Repeat for the other ones. These are the hidden files!
<li>The file original-zebras.bmp is the file before the steganography was done, in case you wish to compare the 'before' and 'after' images. 
</ol>

<blockquote>
<img src="http://computernetworks5e.org/blogs/wp-content/uploads/2013/07/zebras-300x225.jpg" alt="zebras" width="300" height="225" class="aligncenter size-medium wp-image-60" />
<p>Note: The image has been compressed for quick downloading of this page. It does not contain any secret messages so do not download it unless you really like zebras or <a href="http://www.cs.vu.nl/~ast/photos/">Andy's photography</a>.</p>
</blockquote>
