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<p>which has caused a significant issue known as <a href="page.php?w=IPv4_address_exhaustion">IPv4 address exhaustion</a> during the ongoing transition to IPv6.</p>

<p><big>Purpose</big></p>
<p>The Internet Protocol ("IP") is the protocol that defines and enables <a href="page.php?w=internetwork">internetwork</a>ing at the <a href="page.php?w=internet_layer">internet layer</a> of the <a href="page.php?w=Internet_Protocol_Suite">Internet Protocol Suite</a>. It gives the Internet a global-scale logical addressing system which allows the <a href="page.php?w=routing">routing</a></p><p>
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