_CTRL_PER_NETIF==1: Checksum generation/check can be enabled/disabled per netif. ATTENTION: if enabled, the CHECKSUM_GEN_* and CHECKSUM_CHECK_* defines must be enabled! </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ga9f60183f0442bdbeefd6b395c6647613">&#9670;&nbsp;</a></span>LWIP_CHECKSUM_ON_COPY</h2>

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          <td class="memname">#define LWIP_C