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:
Sep. 29, 2009
Filed:
Oct. 31, 2006
Evan John Caves, Santa Barbara, CA (US);
Henri Altarac, Santa Barbara, CA (US);
Koral Ilgun, Nevada City, CA (US);
Evan John Caves, Santa Barbara, CA (US);
Henri Altarac, Santa Barbara, CA (US);
Koral Ilgun, Nevada City, CA (US);
Occam Networks, Santa Barbara, CA (US);
Abstract
A method of preventing ARP broadcast flooding of subscriber access links where an ARP packet is received at a subscriber network edge device and the source and destination information contained within the ARP packet is compared to address lease information for subscribers of a subscriber network. If the destination information obtained from the ARP packet is not associated with an address lease assigned to one of the subscribers, the network device only broadcasts the ARP packet to network uplinks. The method further includes preventing subscribers of a subscriber network from spoofing ARP responses by responding to an ARP request packet with an ARP response packet containing false information. The ARP response packet information is compared to address lease information for the transmitting subscriber. If the source information obtained from the ARP response packet corresponds to address lease information of the transmitting subscriber the ARP response packet is accordingly forwarded.