DJ-CHRIS1
Golden Master
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root said:It depends how you look at the network and the technology used in a network.
a regular hub is a piece of dumb equipment, it recieves a packets and then spits it out of all ports, sending all packets to all ports on the hub, only the computer that actuall wants the packet picks it up.
other computers ignore it.
(this is good when you are sending out broadcast packets or DHCP requests since the DHCP server usually isn't know, so a general request is made to all machines.
however, it does mean that when you send information you are actually sending it to all machines.
if you run a program like snort or ethereal then you just listen to the network and don't generate any extra traffic.
you'll fine that on a switched network, in passive modes, you'll only see traffic eitheron the hub that you are on, (but not other hubs that maybe conected to a switch that you are also on), or just your own traffic if you are directly in a switch or router.
And you rarely see hub's on modern networks.
Oh well just run ARP posioning on a gigabit switch on the backbone