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          <td class="memname">#define LWIP_TCP_CLOSE_TIMEOUT_MS_DEFAULT&#160;&#160;&#160;20000</td>
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<p>By default, TCP socket/netconn close waits 20 seconds max to send the FIN </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ga8b9369ab260f032686a81c77c5b4db77">&#9670;&nbsp;</a></span>LWIP_TCP_KEEPALIVE</h2>

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