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:
Apr. 30, 2002
Filed:
Nov. 03, 1998
Shujin Zhang, San Mateo, CA (US);
Jane Jiaying Jin, San Jose, CA (US);
Jie Chu, Los Altos, CA (US);
Maria Alice Dos Santos, Redwood City, CA (US);
Shuxian Lou, San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Multiple simultaneous network connections from a single PPP connection may be accomplished. A primary PPP connection is established between a user and a first network. A first real network address for the user is then received, the first real network address assigned by the first network. Then, the gateway may establish a secondary network session between a gateway and a second network, receiving a second real network address assigned by the second network. Additional network connections may be added as secondary network sessions. Network address translation is then performed on packets traveling between the user and any of the secondary network sessions, but not on packets traveling between the user and the primary PPP connection. This allows for connection to multiple networks without disturbing the primary PPP session and also allows for the utilization of applications which may not be used with network address translation on the primary PPP session.