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On Fri, Aug 22, 2008 at 2:11 PM, kevin <kevin.lucas@xxxxxxxxxxxxxxxxxx> wrote: >> You could keep your existing network and apply ipsec encryption to it >> but this would require a router that can do ipsec or using a computer >> as a router which can easily have ipsec enabled etc. >> >> Robin >> > I just use the mac address filter > so only hardware I know about can get on! Maybe you would like me to demonstrate an ARP Spoof attack where i redirect all your traffic through my laptop and sniff your passwords and watch what websites you are visiting in real time. This is very very easy. And as i can see packets wining around the network i can get your mac addresses and its trival on some hardware to change the mac address anyway so i can just spoof your one and bang i'm in your network. Mac address filters are mostly worthless don't rely on them for any real security. Robin -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html