// special define for Packet Fields

#define U2EC_L2_TYPE		12
 #define U2EC_L2_TYPE_IP	0x08
#define U2EC_L3_TYPE		23
 #define U2EC_L3_TYPE_TCP 	0x06
#define U2EC_L3_SRC_IP		26
#define U2EC_L3_DST_IP		30
#define U2EC_L3_SRC_PORT	34
#define U2EC_L3_DST_PORT	36
#define U2EC_L4_IRP_SAVE	54