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. 16, 2013
Filed:
Nov. 25, 2008
Huizhao Wang, San Jose, CA (US);
Kent K. Leung, Mountain View, CA (US);
Waseem A. Siddiqi, Santa Clara, CA (US);
Christine Andiazabal, Palo Alto, CA (US);
Huizhao Wang, San Jose, CA (US);
Kent K. Leung, Mountain View, CA (US);
Waseem A. Siddiqi, Santa Clara, CA (US);
Christine Andiazabal, Palo Alto, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Methods and apparatus for enabling mobility of a node that does not support Mobile IP are disclosed. When an AP receives a data packet, the AP may compare the data packet (e.g., source address) with the AP information for one or more APs to determine whether to send a registration request on behalf of the node. More particularly, the AP determines from the source address whether the node is located on a subnet identical to a subnet of the AP. If the node is located on the subnet of the AP, no Mobile IP service is required on behalf of the node. However, when it is determined from the source address that the node is not located on the subnet identical to the subnet of the Access Point, the AP composes and sends a mobile IP registration request on behalf of the node. For instance, the mobile IP registration request may be composed using the gateway associated with the 'home' AP (e.g., having a matching subnet) as the node's Home Agent.