#define LOOPBACK_ADDRMASK_IPv4 ((IPv4_RAW_ADDRESS)DH2N(0xFFFFFF00))
/* Protocol definitions */
-//#define IPPROTO_RAW 0 /* Raw IP */
+#define IPPROTO_RAW 0 /* Raw IP */
#define IPPROTO_ICMP 1 /* Internet Control Message Protocol */
#define IPPROTO_IGMP 2 /* Internet Group Management Protocol */
#define IPPROTO_TCP 6 /* Transmission Control Protocol */