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<div id="projectname">lwIP
&#160;<span id="projectnumber">2.1.2</span>
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<div id="projectbrief">Lightweight IP stack</div>
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<a href="#define-members">Macros</a> </div>
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<div class="title">Multicast<div class="ingroups"><a class="el" href="group__lwip.html">lwIP</a> &raquo; <a class="el" href="group__lwip__opts.html">Options (lwipopts.h)</a> &raquo; <a class="el" href="group__lwip__opts__infrastructure.html">Infrastructure</a></div></div> </div>
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Macros</h2></td></tr>
<tr class="memitem:gab8d7d53247cc62caa76f54b2c5a5df30"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lwip__opts__multicast.html#gab8d7d53247cc62caa76f54b2c5a5df30">LWIP_MULTICAST_TX_OPTIONS</a>&#160;&#160;&#160;((<a class="el" href="group__lwip__opts__igmp.html#gadaf25915ae1fd69c0943ef68cbb38923">LWIP_IGMP</a> || <a class="el" href="group__lwip__opts__mld6.html#ga44d8f24eaebbc50221ac1336212a3528">LWIP_IPV6_MLD</a>) &amp;&amp; (<a class="el" href="group__lwip__opts__udp.html#gab6030e96e72df649d2650fd32d7a67b3">LWIP_UDP</a> || <a class="el" href="group__lwip__opts__raw.html#gaca452be5cb05d9666f8f57e582c39221">LWIP_RAW</a>))</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#gab8d7d53247cc62caa76f54b2c5a5df30">&#9670;&nbsp;</a></span>LWIP_MULTICAST_TX_OPTIONS</h2>
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<td class="memname">#define LWIP_MULTICAST_TX_OPTIONS&#160;&#160;&#160;((<a class="el" href="group__lwip__opts__igmp.html#gadaf25915ae1fd69c0943ef68cbb38923">LWIP_IGMP</a> || <a class="el" href="group__lwip__opts__mld6.html#ga44d8f24eaebbc50221ac1336212a3528">LWIP_IPV6_MLD</a>) &amp;&amp; (<a class="el" href="group__lwip__opts__udp.html#gab6030e96e72df649d2650fd32d7a67b3">LWIP_UDP</a> || <a class="el" href="group__lwip__opts__raw.html#gaca452be5cb05d9666f8f57e582c39221">LWIP_RAW</a>))</td>
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<p>LWIP_MULTICAST_TX_OPTIONS==1: Enable multicast TX support like the socket options IP_MULTICAST_TTL/IP_MULTICAST_IF/IP_MULTICAST_LOOP, as well as (currently only) core support for the corresponding IPv6 options. </p>
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