Patent ID: 8984112
Filing Date: 2015-03-17
Classification: H04L

Abstract:
1. An Internet address information processing method for a user equipment to query an IP address, wherein, a leaf node which assigns the IP address is unknown to the user equipment, the method comprising: receiving, by a first leaf node, a query request message containing the IP address to be queried sent by the user equipment, querying whether the IP address is an IP address assigned by the first leaf node; and if yes, sending address information about the IP address to the user equipment; if no, sending a query request containing at least a prefix of the IP address to be queried to an intermediate layer node, wherein the intermediate layer node stores an IP address prefix of the intermediate layer node itself and IP address prefixes assigned by the intermediate layer node itself; obtaining, by the intermediate layer node, an IP address of a second leaf node according to the prefix of the IP address to be queried to send the query request message containing the IP address to be queried to the second leaf node, wherein the second leaf node is a node assigning the IP address to be queried, and stores address information about the IP address assigned thereby; and sending, by the second leaf node, the address information about the IP address after receiving the query request message containing the IP address to be queried; wherein, the sending the query request containing at least the prefix of the IP address to be queried to the intermediate layer node comprises: sending, by the first leaf node, the query request containing the prefix of the IP address to be queried to an adjacent intermediate layer node; and the obtaining, by the intermediate layer node, the IP address of the second leaf node according to the prefix of the IP address to be queried comprises: querying, by the intermediate layer node adjacent to the first leaf node, whether the prefix of the IP address is assigned by the intermediate layer node; if the prefix of the IP address is assigned by the intermediate layer node, sending, by an intermediate layer node adjacent to the second leaf node, the IP address of the second leaf node; otherwise, successively forwarding the query request containing the prefix of the IP address to be queried to an intermediate layer node on an upper layer until an intermediate layer node finds that the prefix of the IP address is assigned by the intermediate layer node itself; forwarding the query request containing the prefix of the IP address to be queried to an intermediate layer node on a lower layer corresponding to the prefix; and sending a query result after an intermediate layer node finds the IP address of the second leaf node.