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:
Jun. 10, 2014
Filed:
Jul. 22, 2009
Hien Thi Thai, Elk Grove, CA (US);
Anupama Anand, San Jose, CA (US);
Jianxin Wang, San Jose, CA (US);
Hien Thi Thai, Elk Grove, CA (US);
Anupama Anand, San Jose, CA (US);
Jianxin Wang, San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Apparatus, methods, and other embodiments associated with securing and authenticating multiple devices behind a network address translation (NAT) device are described. One example method includes controlling a phone proxy to provide security credential information to an Internet Protocol (IP) phone located behind the NAT device. The credentials may be selectively provided in response to receiving a certificate request from the IP phone. The certificate request includes IP phone identifying addresses. The method may also include controlling the phone proxy to update an entry in a secure IP phone data store to relate together the IP phone identifying addresses, a source port associated with the IP phone, and the fact that credential information was provided to the IP phone. This entry can mark the IP phone as an authorized phone. The entry may be addressable as a function of a least a portion of the IP phone identifying addresses.