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:
Jul. 12, 2011
Filed:
Mar. 02, 2004
Dan Touitou, Ramat Gan, IL;
Guy Pazi, Ramat HaSharon, IL;
Yehiel Shtein, Tel Aviv, IL;
Rephael Tzadikario, Kfar Saba, IL;
Dan Touitou, Ramat Gan, IL;
Guy Pazi, Ramat HaSharon, IL;
Yehiel Shtein, Tel Aviv, IL;
Rephael Tzadikario, Kfar Saba, IL;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method for authenticating communication traffic includes intercepting a request directed over a network from a source address to open a connection to a target computer in accordance with a handshake procedure specified by a predetermined communication protocol. A reply to the request that deviates from the specified handshake procedure is sent to the source address. A response from the source address to the reply is analyzed in order to make an assessment of legitimacy of the source address. Upon determining, based on the assessment, that the source address is legitimate, the target computer is permitted to complete the handshake procedure so as to open the connection with the source address.