How do you sniff for macs using DHCPForce?

[PumaTechTV]

Hey guys! I have read a lot about sniffing for macs but I still don't understand a few concepts. When I press on start sniffing, do I have to have the sb5100 connected to my computer through ethernet? Coax too? Or do i just need to scan without plugin in the modem.





I have Sigma installed on my sb5100 ( through usb blackcat ). btw