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:
Mar. 13, 2001
Filed:
Jul. 21, 1998
Stanley T. Naudus, Springfield, VA (US);
3Com Corporation, Santa Clara, CA (US);
Abstract
A protocol and method for synchronized transfer-window based firewall traversal is provided. The firewall traversal protocol includes messages for securely opening and closing a virtual data transfer-window through a firewall. The method allows a first network device inside a firewall to allow a virtual data transfer-window through a firewall to be opened with a second network device outside the firewall by sending the second network device secure information with the firewall traversal protocol. The secure information allows the second network device outside the firewall to securely traverse the firewall through the virtual data transfer-window to reach the first network device inside the firewall. The protocol and method help to improve firewall security and may help make the firewall less vulnerable to a number of common firewall attacks.