The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 1999
Filed:
Nov. 03, 1997
Alan J Kirby, Hollis, NH (US);
Jeffrey A Kraemer, Northboro, MA (US);
Ashok P Nadkarni, Shrewbury, MA (US);
Raptor Systems, Inc., Waltham, MA (US);
Abstract
The invention features receiving encrypted network packets sent over a network at a network interface computer, and passing the encrypted network packets to a computer on an internal network. The invention also features receiving encrypted network packets at a first computer over a network from a second computer, examining a field in each network packet to determine which of a plurality of encryption algorithms was used to encrypt the network packet, and decrypting the network packet in accordance with the determined encryption algorithm. The invention further features receiving network packets sent over a network, determining which virtual tunnel each network packet was sent over, and routing each network packet to a destination computer in accordance with the determined virtual tunnel. The invention features encrypting network packets at a computer connected to an internal network, passing the encrypted network packet over the internal network to a public network interface computer, and passing the encrypted network packet over a public network connected to the network interface computer.