I'm using wireshark to listen to packets on my own personal home network. I have my Desktop with Debian and Windows 7 running and my laptop is running the same setup; Debian and Windows 7.
I installed wireshark on both.
When on my laptop, I can listen to packets on wlan0. When I browse the web, the packets are captured and all is good.
When on my desktop, I can listen to packets on eth0. When I browse the web and etc, the packets are captured and all is good.
However, when on my laptop (wlan0) and want to listen to packets coming in/out on eth0 - which my desktop computer is on, I obviously get no results.
To the Question:
If I want to use my laptop and monitor the packets coming in and out from my desktop or just simply on both wlan0 and eth0, how could I do this?
This is what it all looks like. As you can see, there is no IP address at eth0. (This is from my laptop, where wlan0 has an IP address).
and here is another perspective
I know it's a small image but if you look closely, under eth0 there is no ip address.. but just below that, wlan0, has a bunch of information there and an ip address.