M_PROTO4
#define M_PWR_SAV M_PROTO4 /* bypass PS handling */
#define M_IGMP_LOOP M_PROTO4 /* transmit on loif, not real ifp */
#define M_ACKCMP M_PROTO4 /* Indicates LRO is sending in a Ack-compression mbuf */
#define M_AUTHIPHDR M_PROTO4
(M_PROTO1|M_PROTO2|M_PROTO3|M_PROTO4|M_PROTO5|M_PROTO6|M_PROTO7|M_PROTO8|\