#define ETH_ZLEN 60 /* Min. octets in frame sans FCS */
#define ETH_DATA_LEN 1500 /* Max. octets in payload */
#define ETH_FRAME_LEN PKTSIZE_ALIGN /* Max. octets in frame sans FCS */
-#define ETH_FCS_LEN 4 /* Octets in the FCS */
struct ueth_data {
/* eth info */