MMAC_VENDOR_ADDR
mmac_info->mac_pool[slot].flags &= ~MMAC_VENDOR_ADDR;
|= MMAC_VENDOR_ADDR;
mmac_info->mac_pool[0].flags |= MMAC_SLOT_USED | MMAC_VENDOR_ADDR;
mmac_info->mac_pool[slot].flags = MMAC_VENDOR_ADDR;