IFACE_CLEAR_ALL
iface_Clear(bundle.iface, &bundle.ncp, 0, IFACE_CLEAR_ALL);
iface_Clear(bundle->iface, &bundle->ncp, 0, IFACE_CLEAR_ALL);
IFACE_CLEAR_ALIASES : IFACE_CLEAR_ALL;
inskip = in6skip = how == IFACE_CLEAR_ALL ? 0 : 1;