n"><dt>Returns</dt><dd>uint32_t network mask </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a0c6727c035a1b0fb8d80502c051d0ef3">&#9670;&nbsp;</a></span>ip_calculate_checksum()</h2>

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          <td class="memname">uint16_t ip_calculate_checksum </td>
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          <td class="paramtype">ip_packet_t *&#160;</td>
          <td cla