He could use something like Ettercap (
http://ettercap.sourceforge.net) to ARP Poison his network and route all traffic to his sniffing system.
With the small number of systems, it should be possible to handle that traffic without much degradation.
-Jason
On Wed, Jul 28, 2010 at 2:25 PM, Anthony Murabito
<anthony@xxxxxxxxxxx> wrote:
Hi Darkk,
After taking a look at the site and the pictures, it is evident you
have a 10/100 Switch. If this switch does not have the capability of
port mirroring (check your manual if possible) you'll have to try one
of the previously suggested methods (buying a small switch that has
this capability, or choosing an option listed in the previous wireshark
link for capture setup).
Regards,
--Anthony