Let's say WireShark is installed on computer A. And let's say I am looking at a Youtube video on the computer B.
Can WireShark see what computer B is doing?
wireshark
Let's say WireShark is installed on computer A. And let's say I am looking at a Youtube video on the computer B.
Can WireShark see what computer B is doing?
Best Answer
In general, no, Wireshark can't sense that traffic. ErikA describes why.
However... if your network supports it, the network itself can show Computer A the traffic for Computer B, and from there Wireshark can grab it. There are several ways of getting it there.
ARP Spoofing is the only way for a computer with no special network privileges to sniff another network node's traffic, and that depends on whether or not the network switch defends against that kind of action. Simply installing Wireshark is not enough, some other action needs to be taken. Otherwise, it'll only happen when the network is explicitly configured to let it happen.