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	<title>CiscoZine &#187; Flooding attack</title>
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		<title>Protecting against MAC flooding attack</title>
		<link>http://www.ciscozine.com/2009/01/05/protecting-against-mac-flooding-attack/</link>
		<comments>http://www.ciscozine.com/2009/01/05/protecting-against-mac-flooding-attack/#comments</comments>
		<pubDate>Mon, 05 Jan 2009 21:34:05 +0000</pubDate>
		<dc:creator>Fabio Semperboni</dc:creator>
				<category><![CDATA[Tutorial]]></category>
		<category><![CDATA[Advanced configuration]]></category>
		<category><![CDATA[Flooding attack]]></category>

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		<description><![CDATA[In a typical MAC flooding attack, a switch is flooded with packets, each containing different source MAC addresses. The intention is to consume the limited memory set aside in the switch to store the MAC address-to-physical port translation table. The result of this attack causes the switch to enter a state called failopen mode, in which all incoming packets are broadcast out on all ports (as with a hub), instead of just down the correct port as per normal operation. A malicious user could then use a packet sniffer running in promiscuous mode to capture sensitive data from other computers, [...]]]></description>
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