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:
Aug. 21, 2012
Filed:
Jan. 10, 2011
Marco Foschiano, San Jose, CA (US);
Christophe Paggen, San Jose, CA (US);
Andrei Kouzmitch, Moscow, RU;
Oleg Tabarovsky, Moscow, RU;
Marco Foschiano, San Jose, CA (US);
Christophe Paggen, San Jose, CA (US);
Andrei Kouzmitch, Moscow, RU;
Oleg Tabarovsky, Moscow, RU;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Automatic filter generation and maintenance comprises detecting, from network packets, an IP address and a first MAC address; the IP address and the first MAC address are used to determine that the IP address and another MAC address that are detected in second network packets is an illegal binding and the other MAC address is different from the first MAC address; causing a network element to create, in an ARP filter, based on the IP address and the first MAC address, rules that cause the network element to prevent an address resolution protocol table from including a binding that includes only one of the IP address and the first MAC address; in response to detecting the IP address and said another MAC address in the second network packets, preventing the address resolution protocol table from including the illegal binding that includes the IP address and the other MAC address.