ips_ip_broadcast_ttl
*(uchar_t *)ptr = ipst->ips_ip_broadcast_ttl;
ipha->ipha_ttl = ipst->ips_ip_broadcast_ttl;
ipha->ipha_ttl = ipst->ips_ip_broadcast_ttl + 1;
ipha->ipha_ttl = ipst->ips_ip_broadcast_ttl;