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<p>Currently, most IP addresses consist of four sets of numbers, each separated by a period. <code>192.168.1.42</code> is an example of an IP address.</p>
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<note style="tip"><p>An IP address can either be <em>dynamic</em> or <em>static</em>. Dynamic IP addresses are temporarily assigned each time your computer connects to a network. Static IP addresses are fixed, and do not change. Dynamic IP addresses are more common that static addresses - static addresses are typically only used when there is a special need for them, such as administering a server.</p></note>