#define ENET_HEADER_SIZE 14
#define ENET_FCS_SIZE 4
+#define ENET_DEF_MTU_SIZE 1500
+#define ENET_DEF_BUF_SIZE (ENET_DEF_MTU_SIZE + ENET_HEADER_SIZE + ENET_FCS_SIZE)
#define EMAC_MIN_FRAME 64
#define EMAC_MAX_FRAME 9018
#define EMAC_MIN_MTU (EMAC_MIN_FRAME - ENET_HEADER_SIZE - ENET_FCS_SIZE)