I am about to give a conference about security, and I am looking into ways of building a switched network with two laptops. Obviously, I want also an independent gateway for ARP Spoofing demonstrations.
So the thing is, two laptops connected to a gateway, and this gateway delivering internet.
I have a wireless router, so I can set up a LAN between the two laptops but I don't have internet access (it is a public building, so I don't have the DSL plug available).
I also tested vmware, but there the gateway is the host OS, and ARP Spoofing doesn't make any sense.
Do you have any ideas?