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:
May. 26, 2009
Filed:
Apr. 27, 2005
Shujin Zhang, San Mateo, CA (US);
Xi Xu, Milpitas, CA (US);
Maria Alice Dos Santos, Redwood City, CA (US);
Jane Jiaying Jin, San Jose, CA (US);
Jie Chu, Los Altos, CA (US);
Shuxian Lou, San Jose, CA (US);
Shujin Zhang, San Mateo, CA (US);
Xi Xu, Milpitas, CA (US);
Maria Alice Dos Santos, Redwood City, CA (US);
Jane Jiaying Jin, San Jose, CA (US);
Jie Chu, Los Altos, CA (US);
Shuxian Lou, San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A gateway routes a packet from a user to a connected network utilizing a per-user routing table. A source address is extracted from the packet; a per-user routing table corresponding to the source address is found, the per-user routing table contains entries corresponding to one or more currently accessible networks for the user and the range of network addresses corresponding to the currently accessible networks; a destination address is extracted from the packet; an entry in the matching per-user routing table with a range of network addresses containing the destination address is sought; the packet is routed to a matching network if the destination address is contained within one of the ranges of network addresses for the currently accessible networks ('ranges'); and the packet is routed to a default network if the destination address is not contained within one of the ranges. Different users may access a different set of networks and select a desired network for access.