On Wed, 2010-02-03 at 23:11 +0100, Vadkan Jozsef wrote: > How can I find out that someone is using it's network card in > promiscuous mode in a subnet? > > Thank you! > You can't. ... and even if you could, someone could potentially use a passive splitter and yank all the packets of the subnet. Having said all that, if your network is switched (as opposed to using cheap FE hubs), only broadcast traffic (ARP/DHCP/etc) will be visible in promisc mode. - Gilboa -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines