Wireshark · Ethereal-users: Re: [Ethereal-users] new user to ethereal - question

[Guy Harris <gharris@xxxxxxxxx>]

Kevin B. wrote:

> Also, the problem I am having is that I am seeing a lot of network 
> traffic but only that coming and going on my laptop. I am not able to 
> see any traffic to and from my desktop. 
>
> I am using an Intel PRO/Wireless 2200BG integrated wireless card on my 
> laptop (which is running linux).

Well, at least it's not Windows (which, if somebody wants to capture, 
with Ethereal - or any other libpcap/WinPcap-based application - 
wireless traffic other than traffic to and from the machine, is 
definitely the Wrong Choice).

What driver are you using?

A quick look at the source to Intel's Linux driver doesn't show any 
instance of the string "promisc" (case-insensitive), so the driver might 
not support promiscuous mode.  Current versions *do* appear to support 
monitor mode, so you might be able to capture in monitor mode; however, 
I don't know whether, if the adapter is in monitor mode, it can also 
associate with a network and send traffic on and receive traffic from 
the network.