Patent ID: 8102828
Filing Date: 2012-01-24
Classification: H04L,H04W

Abstract:
1. A method for establishing a tunnel in a wireless local area network (WLAN), comprising: receiving, by a packet data gateway (PDG), a tunnel establishment request initiated by a WLAN terminal for establishing a tunnel in an existing Internet Key Exchange Security Association (IKE SA); judging, by the PDG, whether the number of tunnels already established in the IKE SA has reached a first threshold or not, wherein the first threshold is stored in the PDG; if the number of tunnels already established in the IKE SA has not reached the first threshold, judging, by the PDG, whether the number of tunnels already established for the WLAN terminal in all existing IKE SA has reached a second threshold or not, wherein the second threshold is stored in the PDG, and if the number of tunnels already established in the IKE SA has reached the first threshold, rejecting the establishment of the tunnel for the WLAN terminal.