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Add multicast support to loopif

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This commit adds support to send and receive multicast on the loopback
netif by enabling IGMP via NETIF_FLAG_IGMP

This commit also introduces an LwIP configuration option,
LWIP_LOOPIF_MCAST, to control the behavior and it defaults to off
This commit is contained in:
Joel Cunningham
2015-08-24 11:28:13 -05:00
committed by sg
parent 204bd29e52
commit 0ab21da820
2 changed files with 10 additions and 0 deletions
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7
src/include/lwip/opt.h
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@@ -1424,6 +1424,13 @@
#define LWIP_HAVE_LOOPIF LWIP_NETIF_LOOPBACK
#endif
/**
* LWIP_LOOPIF_MCAST==1: Support multicast on loop interface (127.0.0.1).
*/
#ifndef LWIP_LOOPIF_MCAST
#define LWIP_LOOPIF_MCAST 0
#endif
/*
------------------------------------
---------- SLIPIF options ----------