This mode applies to both a wired network. Hence, the promiscuous mode is not sufficient to see all the traffic. I was trying Wireshark for capturing the packets in promiscuous mode and the Wireshark forum said that the problem may be because of some setting in the network adapter driver used by Windows or due to the Windows OS. what is promiscuous mode wireshark I run vmware on MacBook and normally I get a prompt to enter my MacBook pass to enable promisc mode.