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<a href="#define-members">Macros</a> </div>
<div class="headertitle"><div class="title">Neighbor discovery<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__ipv6.html">IPv6</a></div></div></div>
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Macros</h2></td></tr>
<tr class="memitem:ga0757a3c1b5d1563ad2d77228e1d8a60f" id="r_ga0757a3c1b5d1563ad2d77228e1d8a60f"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ga0757a3c1b5d1563ad2d77228e1d8a60f">LWIP_ND6_QUEUEING</a>&#160;&#160;&#160;<a class="el" href="group__lwip__opts__ipv6.html#ga872e3bb3fe2212156d66b18fccc9643f">LWIP_IPV6</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<h2 class="groupheader">Macro Definition Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#gad35d10353ac7c7d2c8d4b83788cdc6d9">&#9670;&#160;</a></span>LWIP_ND6_ALLOW_RA_UPDATES</h2>
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<td class="memname">#define LWIP_ND6_ALLOW_RA_UPDATES&#160;&#160;&#160;1</td>
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<p>LWIP_ND6_ALLOW_RA_UPDATES==1: Allow Router Advertisement messages to update Reachable time and retransmission timers, and netif MTU. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga315bd6d4a9d185766dfc3253cd9d7715">&#9670;&#160;</a></span>LWIP_ND6_DELAY_FIRST_PROBE_TIME</h2>
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<td class="memname">#define LWIP_ND6_DELAY_FIRST_PROBE_TIME&#160;&#160;&#160;5000</td>
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<p>LWIP_ND6_DELAY_FIRST_PROBE_TIME: Delay before first unicast neighbor solicitation message is sent, during neighbor reachability detection. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga960b8973df083fad53ae0eaa79f8c4df">&#9670;&#160;</a></span>LWIP_ND6_MAX_ANYCAST_DELAY_TIME</h2>
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<td class="memname">#define LWIP_ND6_MAX_ANYCAST_DELAY_TIME&#160;&#160;&#160;1000</td>
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<p>Unused: See ND RFC (time in milliseconds). </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga980909018aed54adc10dd68be3572b30">&#9670;&#160;</a></span>LWIP_ND6_MAX_MULTICAST_SOLICIT</h2>
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<td class="memname">#define LWIP_ND6_MAX_MULTICAST_SOLICIT&#160;&#160;&#160;3</td>
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<p>LWIP_ND6_MAX_MULTICAST_SOLICIT: max number of multicast solicit messages to send (neighbor solicit and router solicit) </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga86ab0cac87cdc7aeff09384ddbaaba2a">&#9670;&#160;</a></span>LWIP_ND6_MAX_NEIGHBOR_ADVERTISEMENT</h2>
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<td class="memname">#define LWIP_ND6_MAX_NEIGHBOR_ADVERTISEMENT&#160;&#160;&#160;3</td>
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<p>Unused: See ND RFC </p>
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<h2 class="memtitle"><span class="permalink"><a href="#gafa6f4c2d2c259ab0895fa03a6f08c691">&#9670;&#160;</a></span>LWIP_ND6_MAX_UNICAST_SOLICIT</h2>
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<td class="memname">#define LWIP_ND6_MAX_UNICAST_SOLICIT&#160;&#160;&#160;3</td>
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<p>LWIP_ND6_MAX_UNICAST_SOLICIT: max number of unicast neighbor solicitation messages to send during neighbor reachability detection. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#gacad118b1ae886e80137a1d4f0fb19672">&#9670;&#160;</a></span>LWIP_ND6_NUM_DESTINATIONS</h2>
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<td class="memname">#define LWIP_ND6_NUM_DESTINATIONS&#160;&#160;&#160;10</td>
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<p>LWIP_ND6_NUM_DESTINATIONS: number of entries in IPv6 destination cache </p>
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<h2 class="memtitle"><span class="permalink"><a href="#gab2fe15bdb4e0a41f295eb5577b11ad16">&#9670;&#160;</a></span>LWIP_ND6_NUM_NEIGHBORS</h2>
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<td class="memname">#define LWIP_ND6_NUM_NEIGHBORS&#160;&#160;&#160;10</td>
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<p>LWIP_ND6_NUM_NEIGHBORS: Number of entries in IPv6 neighbor cache </p>
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<h2 class="memtitle"><span class="permalink"><a href="#gad9cc576b5951f1b5e1c2b0d0bb831d9a">&#9670;&#160;</a></span>LWIP_ND6_NUM_PREFIXES</h2>
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<td class="memname">#define LWIP_ND6_NUM_PREFIXES&#160;&#160;&#160;5</td>
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<p>LWIP_ND6_NUM_PREFIXES: number of entries in IPv6 on-link prefixes cache </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga75e81a96148f266c8fad8c0bcab2f36a">&#9670;&#160;</a></span>LWIP_ND6_NUM_ROUTERS</h2>
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<td class="memname">#define LWIP_ND6_NUM_ROUTERS&#160;&#160;&#160;3</td>
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<p>LWIP_ND6_NUM_ROUTERS: number of entries in IPv6 default router cache </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga0757a3c1b5d1563ad2d77228e1d8a60f">&#9670;&#160;</a></span>LWIP_ND6_QUEUEING</h2>
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<td class="memname">#define LWIP_ND6_QUEUEING&#160;&#160;&#160;<a class="el" href="group__lwip__opts__ipv6.html#ga872e3bb3fe2212156d66b18fccc9643f">LWIP_IPV6</a></td>
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<p>LWIP_ND6_QUEUEING==1: queue outgoing IPv6 packets while MAC address is being resolved. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#gaea4d829c0b52cc6cc28925eee89a7429">&#9670;&#160;</a></span>LWIP_ND6_RDNSS_MAX_DNS_SERVERS</h2>
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<td class="memname">#define LWIP_ND6_RDNSS_MAX_DNS_SERVERS&#160;&#160;&#160;0</td>
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<p>LWIP_ND6_RDNSS_MAX_DNS_SERVERS &gt; 0: Use IPv6 Router Advertisement Recursive DNS Server Option (as per RFC 6106) to copy a defined maximum number of DNS servers to the DNS module. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga269db9d61cdfc2fd3bc7b12c56261c74">&#9670;&#160;</a></span>LWIP_ND6_REACHABLE_TIME</h2>
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<td class="memname">#define LWIP_ND6_REACHABLE_TIME&#160;&#160;&#160;30000</td>
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<p>LWIP_ND6_REACHABLE_TIME: default neighbor reachable time (in milliseconds). May be updated by router advertisement messages. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga461abcbeef1d236d1f3201827dd28ad9">&#9670;&#160;</a></span>LWIP_ND6_RETRANS_TIMER</h2>
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<td class="memname">#define LWIP_ND6_RETRANS_TIMER&#160;&#160;&#160;1000</td>
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<p>LWIP_ND6_RETRANS_TIMER: default retransmission timer for solicitation messages </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga9d7cb6fd447ef0f6726f565e2c7509c4">&#9670;&#160;</a></span>LWIP_ND6_TCP_REACHABILITY_HINTS</h2>
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<td class="memname">#define LWIP_ND6_TCP_REACHABILITY_HINTS&#160;&#160;&#160;1</td>
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<p>LWIP_ND6_TCP_REACHABILITY_HINTS==1: Allow TCP to provide Neighbor Discovery with reachability hints for connected destinations. This helps avoid sending unicast neighbor solicitation messages. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#gabfaf3d92d51e2a9d70c8360af2611fb2">&#9670;&#160;</a></span>MEMP_NUM_ND6_QUEUE</h2>
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<td class="memname">#define MEMP_NUM_ND6_QUEUE&#160;&#160;&#160;20</td>
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<p>MEMP_NUM_ND6_QUEUE: Max number of IPv6 packets to queue during MAC resolution. </p>
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