https://hackepedia.org/index.php?action=history&feed=atom&title=Hubs 2026-05-08T16:42:44Z Revision history for this page on the wiki MediaWiki 1.45.3 https://hackepedia.org/index.php?title=Hubs&diff=4144&oldid=prev 2008-05-31T19:33:11Z

<p>sniffer</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:33, 31 May 2008</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Hubs are devices that connect other devices together over a network.  They are inherently a "broadcast" device, in that all devices see all traffic that passes through the hub, even if they are neither the sender nor receiver of the traffic.  This makes hubs both insecure (since everyone sees the traffic, and can [[sniff]] the traffic), and perform poorly (due to the increased likelyhood of [[collisions]]).</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Hubs are devices that connect other devices together over a network.  They are inherently a "broadcast" device, in that all devices see all traffic that passes through the hub, even if they are neither the sender nor receiver of the traffic.  This makes hubs both insecure (since everyone sees the traffic, and can [[<ins style="font-weight: bold; text-decoration: none;">sniffer|</ins>sniff]] the traffic), and perform poorly (due to the increased likelyhood of [[collisions]]).</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A [[switch]] should be used instead of a hub in almost all cases.  One exception to this is when diagnosing connections, and you &lt;b&gt;do&lt;/b&gt; need to eavesdrop on the traffic (perhaps when testing firewall rules).  A hub can be (more or less) transparently used to &quot;fork&quot; the traffic to another device, such as a laptop running [[tcpdump]] or other diagnostic software.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A [[switch]] should be used instead of a hub in almost all cases.  One exception to this is when diagnosing connections, and you &lt;b&gt;do&lt;/b&gt; need to eavesdrop on the traffic (perhaps when testing firewall rules).  A hub can be (more or less) transparently used to &quot;fork&quot; the traffic to another device, such as a laptop running [[tcpdump]] or other diagnostic software.</div></td></tr> </table>

Pbug https://hackepedia.org/index.php?title=Hubs&diff=1938&oldid=prev 2005-11-29T20:40:19Z

<p></p> <p><b>New page</b></p><div>Hubs are devices that connect other devices together over a network. They are inherently a &quot;broadcast&quot; device, in that all devices see all traffic that passes through the hub, even if they are neither the sender nor receiver of the traffic. This makes hubs both insecure (since everyone sees the traffic, and can [[sniff]] the traffic), and perform poorly (due to the increased likelyhood of [[collisions]]).<br /> <br /> A [[switch]] should be used instead of a hub in almost all cases. One exception to this is when diagnosing connections, and you &lt;b&gt;do&lt;/b&gt; need to eavesdrop on the traffic (perhaps when testing firewall rules). A hub can be (more or less) transparently used to &quot;fork&quot; the traffic to another device, such as a laptop running [[tcpdump]] or other diagnostic software.</div>

Hawson