Do not #undef in example project-conf.h (multicast)
/* For Imin: Use 16 over CSMA, 64 over Contiki MAC */
#define ROLL_TM_CONF_IMIN_1 64
-#undef UIP_MCAST6_ROUTE_CONF_ROUTES
#define UIP_MCAST6_ROUTE_CONF_ROUTES 1
/* Code/RAM footprint savings so that things will fit on our device */
-#undef NETSTACK_MAX_ROUTE_ENTRIES
#define NETSTACK_MAX_ROUTE_ENTRIES 10
-#undef NBR_TABLE_CONF_MAX_NEIGHBORS
#define NBR_TABLE_CONF_MAX_NEIGHBORS 10
#endif /* PROJECT_CONF_H_ */
