The ISI "Tunnel"

Abstract

(Maximum 200 words) 14. SUBJECT TERMS 15. NUMBER OF PAGES 16. PRICE CODE 20. LIMITATION OF ABSTRACT 19. SECURITY CLASSIFICATION OF ABSTRACT 18. SECURITY CLASSIFICATION OF THIS PAGE 17. SECURITY CLASSIFICTION OF REPORT USC INFORMATION SCIENCES INSTITUTE 4676 ADMIRALTY WAY MARINA DEL REY, CA 90292-6695 Approved for public release; distribution is unlimited UNCLASSIFIED UNLIMITED UNCLASSIFIED UNCLASSIFIED October 1993 Final Report June 1992 - October 1993 The ISI "Tunnel" C-DABT 63-91-C-0001 DeSchon, Annette and Cohen, Danny ISI/SR-93-358 DARPA 3701 N. Fairfax Drive Arlington, VA 22203-1714 The ISI Tunnel allows sites that are hidden behind "firewalls", also known as "gatekeepers" or "mailbridges ", to have IP-based internet access without being open to attacks over the Internet. The Tunnel is a special router that provides smooth seamless internet access from a closed environment, the "inside", to the "outside" while restricting the access from the outside to the..