Patent ID: 9173082
Filing Date: 2015-10-27
Classification: H04L,H04W

Abstract:
1. A method for preventing a roaming user terminal from re-authentication, comprising: receiving, by a Broadband Remote Access Server (BRAS), change information of a roaming user terminal reported by an Access Controller (AC), the change information indicating that a Virtual Local Area Network (VLAN) of the roaming user terminal has changed, wherein the change information of the roaming user terminal received by the BRAS comprises an identifier of a logic port accessed by the roaming user terminal, a unique identifier of the roaming user terminal, a state of the roaming user terminal, and a time that the state changed; modifying, by the BRAS, information of the roaming user terminal corresponding to the change information reported by the AC, wherein the modified information of the roaming user terminal is an item in a table maintained at the BRAS; reporting, by the BRAS, the modified information of the roaming user terminal to an Authentication, Authorization, Accounting server (AAA Server); and allowing, by the BRAS, the roaming user terminal to access a network with an Internet Protocol (IP) address of the changed VLAN.