IFBIF_SPAN
if (reqp->ifbr_ifsflags & IFBIF_SPAN)
bif->bif_flags = IFBIF_SPAN;
breq->ifbr_ifsflags = bif->bif_flags | IFBIF_SPAN;
breq.ifbr_ifsflags = IFBIF_SPAN;
p->p_bif_flags = IFBIF_SPAN;
if (!ISSET(p->p_bif_flags, IFBIF_SPAN)) {
ports_ptr = ISSET(p->p_bif_flags, IFBIF_SPAN) ?