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Mac address wireshark9/3/2023 ![]() Google "ettercap" if you wish to pursue that angle. I'm ignoring for the purposes of this discussion tools like ettercap which would allow you to poison a given switch CAM table to re-direct certain traffic so that you can see it. If you define 'network' as everything in your building or campus, then it becomes a much more difficult proposition, and would generally require access to resources on other switches not commonly available to the average end-user. ![]() For information on SPAN ports, see the documentation provided by the switch vendor. Simply fire up wireshark, select the network interface in use, and click "start". The source MAC address is the one of the sender (the one encircled in red) and the destination MAC address is of the receiver. When u click on a packet/frame corresponding window highlights: Here if you expand the Ethernet Section you will see source and destination address. In either case, wireshark will by default capture both the IP and MAC addresses of all the traffic that it sees. Open Wireshark and start capturing packets. Using the search bar, you can look for a OUI and find all vendors associated with the information you provided. Click on the Source column to sort by IP address and scroll around to view the list. Capture several seconds of packets, then click the red square in the toolbar to stop capturing. ![]() If you're talking about your local broadcast domain, you may be able to 'mirror' all traffic transiting your local switch over to a 'SPAN' port on that switch and monitor all the traffic there using wireshark. OUI Lookup is a website that provides up-to-date information about MAC Addresses and OUI Vendors. After double-clicking on the interface name, Wireshark will begin capturing. Normally, if you run wireshark on your own computer, you will only see your own traffic, between your computer and the switch. Get started with Wireshark using this Wireshark tutorial for beginners that explains how to track network activity, tcp, ip and http packets. It depends almost entirely on how you define "network". ![]()
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