An apparatus and method for providing a secure firewall between a private network and a public network are disclosed. The apparatus is a gateway station having an operating system that is modified to disable communications packet forwarding, and further modified to process any communications packet having...http://www.google.de/patents/US5623601?utm_source=gb-gplus-sharePatent US5623601 - Apparatus and method for providing a secure gateway for communication and data exchanges between networks
