Patent ID: 8042154
Filing Date: 2011-10-18
Classification: H04L,H04W

Abstract:
1. A method, comprising: receiving a request message identifying a node by a AAA server from a network device after the network device performs Point to Point Protocol (PPP) negotiation with the node, the request message being in a AAA format; obtaining by the AAA server a password associated with the node; generating a Challenge Handshake Authentication Protocol (CHAP) challenge by the AAA server; generating a CHAP response by the AAA server from the password and the CHAP challenge; and sending a reply message in a AAA format and indicating the CHAP challenge and the CHAP response by the AAA server to the network device, thereby enabling the network device to generate and send a Mobile IP registration request including the CHAP challenge and CHAP response on behalf of the node such that the network device performs proxy Mobile IP registration on behalf of the node, wherein the node does not support Mobile IP, and wherein the node does not support the CHAP protocol.