A field office for the unit had a windows 2003 server's VPN server, which sets service ADSL service device is a dial-up (Internet), ADSL device directly connected to the server, with no router.
The hackerbegins by sendingamaliciousARP "reply" (for which there was nopreviousrequest) toyourrouter, associating hiscomputer'sMACaddresswith192.168.0.12 (see Diagram 3).