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<dl class="section return"><dt>Returns</dt><dd>If ifindex is an interface index, then the function shall return the value supplied in ifname, which points to a buffer now containing the interface name. Otherwise, the function shall return a NULL pointer. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ga76d07962b9d19c3c6f578de780e2c3be">&#9670;&nbsp;</a></span>lwip_if_nametoindex()</h2>

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