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.

Date of Patent:
Jun. 26, 2007

Filed:

Nov. 07, 2002
Applicants:

Paul Monroe Crutcher, Rochester, MN (US);

Paul Maurice Gunsch, Rochester, MN (US);

Todd Douglas Inman, Rochester, MN (US);

William Russell Marshall, Rochester, MN (US);

Inventors:

Paul Monroe Crutcher, Rochester, MN (US);

Paul Maurice Gunsch, Rochester, MN (US);

Todd Douglas Inman, Rochester, MN (US);

William Russell Marshall, Rochester, MN (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01); G06F 17/00 (2006.01); G06F 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed are two mechanisms for preventing access failures attributable to dynamic port assignment of firewall-blocked ports. The mechanism involves an enhanced firewall that opens blocked ports prior to possible dynamic allocation so that the blocked ports are not available when a port is requested. The second mechanism involves an enhanced commutations stack that works in conjunction with an enhanced firewall to reserve blocked ports so that the blocked ports are not available for dynamic allocation when a port is requested.


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