Tixy a écrit : > > The server uses PPPoE to talk to the modem, which translates this into > PPPoA to get to my IPSs equipment. Are you sure of this ? Isn't your modem rather working as a plain ethernet bridge, just transparently forwarding the PPPoE traffic between its ADSL and ethernet ports ? If so, then it is an obvious security breach : it is a plain ethernet switch connecting your LAN to the outside world.