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opt.h: provide some hints regarding MLD settings

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David van Moolenbroek 2016-12-16 21:53:35 +00:00 committed by sg
parent 71810d0415
commit 24fa1c457e
1 changed files with 6 additions and 1 deletions
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7
src/include/lwip/opt.h
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@ -2245,13 +2245,18 @@
*/
/**
* LWIP_IPV6_MLD==1: Enable multicast listener discovery protocol.
* If LWIP_IPV6 is enabled but this setting is disabled, the MAC layer must
* indiscriminately pass all inbound IPv6 multicast traffic to lwIP.
*/
#if !defined LWIP_IPV6_MLD || defined __DOXYGEN__
#define LWIP_IPV6_MLD (LWIP_IPV6)
#endif
/**
* MEMP_NUM_MLD6_GROUP: Max number of IPv6 multicast that can be joined.
* MEMP_NUM_MLD6_GROUP: Max number of IPv6 multicast groups that can be joined.
* There must be enough groups so that each netif can join the solicited-node
* multicast group for each of its local addresses, plus one for MDNS if
* applicable, plus any number of groups to be joined on UDP sockets.
*/
#if !defined MEMP_NUM_MLD6_GROUP || defined __DOXYGEN__
#define MEMP_NUM_MLD6_GROUP 4