Protecting your wifi

[Nimportequoi]

Not sure where to post this, but as I'm a gite owner, maybe here, although it applies equally to other small businesses who offer free internet access to their clients. Following receipt of my first warning from Hadopi (some guests kindly downloaded something from eMule during their stay in my gite) I need to make more effort to protect my connection from illegal downloading. I don't want to offer an Orange Hotspot as that means guests would pay, so I'm looking at two companies who offer the protection service at with a setup cost and monthly abonnement.

http://www.noodo-wifi.com/

http://pico.quickspot.biz/

Their pricing policy is similar - I was just wondering if anyone has any first hand experience of either?

[AnOther]

If it were me I'd get an old PC and install something like CCproxy with suitable traffic shaping.