def promiscping(net, timeout=2, fake_bcast="ff:ff:ff:ff:ff:fe", **kargs):
    """Send ARP who-has requests to determine which hosts are in promiscuous mode
    promiscping(net, iface=conf.iface)"""
    ans, unans = srp(Ether(dst=fake_bcast) / ARP(pdst=net),
                     filter="arp and arp[7] = 2", timeout=timeout, iface_hint=net, **kargs)  # noqa: E501
    ans = ARPingResult(ans.res, name="PROMISCPing")

    ans.display()
    return ans, unans