Collaboration diagram for IGMP:

Macros
#define	LWIP_IGMP 0

#define	LWIP_MULTICAST_TX_OPTIONS (LWIP_IGMP && LWIP_UDP)

Detailed Description

Macro Definition Documentation

#define LWIP_IGMP 0

LWIP_IGMP==1: Turn on IGMP module.

#define LWIP_MULTICAST_TX_OPTIONS (LWIP_IGMP && LWIP_UDP)

LWIP_MULTICAST_TX_OPTIONS==1: Enable multicast TX support like the socket options IP_MULTICAST_TTL/IP_MULTICAST_IF/IP_MULTICAST_LOOP