s="paramname">proto</td><td>the PROTOCOL to be set in the IP header</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>ERR_RTE if no route is found see <a class="el" href="group__ip.html#ga51cd772c3f6fca7c0363dca1fce7b250">ip_output_if()</a> for more return values </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ab220bc4ce4f48bdbba447358b3594917">&#9670;&nbsp;</a></span>ip4_output_if()</h2>

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