Patent ID: 8769661

Claim:
A Virtual Private Network (VPN) node information processing method performed by a network entity communicating with at least two nodes, the at least two nodes including a first node and a second node, comprising: receiving an access request message sent by a second node, wherein the access request message at least carries authentication information, a current real Internet Protocol (IP) address, a node name of the second node and information indicating whether to accept extranet connection of the second node; allocating, by a processor coupled to a memory storage, a virtual IP address of the second node when the authentication information of the node is correct; registering the current real IP address, the node name of the second node, the information indicating whether to accept the extranet connection, and the virtual IP address of the second node as registration information; receiving a query message sent by the first node, wherein the query message carries at least one of a node name of the second node and the virtual IP address of the second node; querying registration information of the second node by the first node according to at least one of the node name of the second node and the virtual IP address of the second node; sending the registration information of the second node to the first node, wherein the registration information of the second node at least carries information indicating whether the second node accepts the extranet connection; when neither the second node nor the first node accepts the extranet connection, receiving a network tunnel establishing request sent by the first node and a network tunnel establishing request sent by the second node: sending a network tunnel establishing response to the first node and a network tunnel establishing response to the second node so as to establish a network tunnel between the first node and the second node; and delivering information between the first node and the second node by using the network tunnel between the first node and the second node.