typedef struct ipnet_hdr {
uint8_t iph_version;
uint8_t iph_family;
uint16_t iph_htype;
uint32_t iph_pktlen;
uint32_t iph_ifindex;
uint32_t iph_grifindex;
uint32_t iph_zsrc;
uint32_t iph_zdst;
} ipnet_hdr_t;
#define IPH_AF_INET 2 /* Matches Solaris's AF_INET */
#define IPH_AF_INET6 26 /* Matches Solaris's AF_INET6 */