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Why am I seeing only broadcasts on my network, even though I know my ethernet card/driver supports promiscuous mode?

April 26, 2017broadcasts card driver Ethernet mode Network promiscuous seeing supports

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Why am I seeing only broadcasts on my network, even though I know my ethernet card/driver supports promiscuous mode?

1 Answer

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You have probably attached LANWatch to an Ethernet switch, rather than a hub. Switches are set up to segragate data so that a given port will only see packets destined to the ethernet card attached to it. The solution to this problem is that the switch should have a monitor port or the ability to configure a port as a monitor port. Plug the machine running LANWatch into this port and you should be able to see all of the traffic on your network.