https://8bd9e53a.aww-3cz.pages.dev/tags/tcpdump/ Recent content in Tcpdump on Aaron's Worthless Words Hugo en Fri, 13 Mar 2009 00:00:00 +0000 https://8bd9e53a.aww-3cz.pages.dev/posts/2009/03/spans-on-cisco-switches/ Fri, 13 Mar 2009 00:00:00 +0000 https://8bd9e53a.aww-3cz.pages.dev/posts/2009/03/spans-on-cisco-switches/ <p>I can&rsquo;t believe I haven&rsquo;t blogged on this yet.  SPANs are one of my favorite things in the world.</p> <p>The switched port analyzer (SPAN) is a mechanism on Cisco switches that allows you to take traffic on one port and copy it to another.  It&rsquo;s generally used to get traffic to a sniffer or IDS for analysis, but it&rsquo;s a great tool to use to sample traffic from a host for troubleshooting.</p>