IFCAP_WOL
ifp->if_capabilities |= IFCAP_WOL;
ifp->if_capabilities |= IFCAP_WOL;
if ((ifp->if_capenable & IFCAP_WOL) != 0)
if ((ifp->if_capenable & IFCAP_WOL) == 0) {
ifp->if_capabilities |= IFCAP_WOL;
ifp->if_capabilities |= IFCAP_WOL;
ifp->if_capabilities |= IFCAP_WOL;
if (ifp->if_capabilities & IFCAP_WOL) {