You may want to check out ettercap also. There is a Windows port 
available, it runs very well on XP, but is designed for linux.

It can sniff switches (even ones without a monitor/span port) also.




Mike Razavi wrote:

>Thank you
>
>-----Original Message-----
>From: Barry Mather [mailto:barry dot mather at dorecentres dot com dot au] 
>Sent: Thursday, February 24, 2005 9:00 PM
>To: m0n0wall at lists dot m0n0 dot ch
>Subject: RE: [m0n0wall] a software to check my network???
>
>3com network supervisor does a lot of this kind of stuff ... not sure if
>its free any more, used to be a free download, and is not limited to
>3com switches, it seemed even to navigate its way easily around full
>layer 3 networks as well ...
>
>A fairly useful product to have in your toolkit
>
>-----Original Message-----
>From: Mike Razavi [mailto:mike at havepc dot com] 
>Sent: Friday, 25 February 2005 3:36 PM
>To: m0n0wall at lists dot m0n0 dot ch
>Subject: [m0n0wall] a software to check my network???
>
>Anyone know any windows based software which can help me to test my
>network to make sure all my hubs, routers, switches, cables and computer
>are not causing and network issues?
>
>I really appreciate any thought on this.
>
>Mike
>
>
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