Patent ID: 8978099
Filing Date: 2015-03-10
Classification: H04L

Abstract:
1. A method for detecting an IP address, for application in an access router in an operator's network, with said access router being connected via a first interface to a network accessed by a user and being connected via a second interface to an upstream access channel of the operator's network, wherein, said access router configures the detected IP address and the method comprises: releasing by said access router routes of said detected IP address via said first interface and said second interface, and setting that a priority of the route released via said first interface is lower than that of a route released via said second interface; after having received by said access router a WEB request by the user via said first interface, searching a session record corresponding to said WEB request; establishing by said access router the session record corresponding to said WEB request when the corresponding session record is not found, and returning a redirecting message taking said detected IP address as a re-directed destination IP address; and after having received by said access router via said second interface another message having the re-directed destination IP address, determining that the user who sent said another message is an illegal user.