></dl>
<dl class="section return"><dt>Returns</dt><dd><ul>
<li>ERR_BUF Could not make room for Ethernet header.</li>
<li>ERR_MEM Hardware address unknown, and no more ARP entries available to query for address or queue the packet.</li>
<li>ERR_MEM Could not queue packet due to memory shortage.</li>
<li>ERR_RTE No route to destination (no gateway to external networks).</li>
<li>ERR_ARG Non-unicast address given, those will not appear in ARP cache. </li>
</ul>
</dd></dl>

</div>
</div>
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