Multi-layer user management method for multicasting proxy

A multi-layer user management method implemented by a computer for multicasting proxy, comprising:

• dividing a user management for a multicasting group into an interface layer management, a data link layer management, and an user layer management,
• controlling multicasting characteristics corresponding to multicast interfaces via the interface layer management,
• controlling multicasting characteristics corresponding to data links via the data link layer management, and
• controlling multicasting characteristics corresponding to users via the user layer management,
• providing a control block that is for and that has multicasting characteristic data corresponding to each of the interface layer management, the data link layer management, and the user layer management;
• establishing a data relationship among the control blocks;
• and
• controlling a network device to manage a user of the multicasting group by using the data relationship including:
• finding a first interface layer control block according to a data structure of an interface of net (IFNET) that has received a multicasting packet;
• then judging multicasting characteristics of the multicasting groups which are defined in the found interface layer control block to determine whether to continue successive processing;
• if so, performing the next steps, otherwise ending;
• finding a first data link layer control block according to a data relationship between data link layer control blocks and the first interface layer control block;
• then judging multicasting characteristics corresponding to data links of the multicasting packet to determine whether to continue successive processing;
• if so, performing the next step, otherwise ending;
• and
• finding a first user layer control block according to a multicasting group IP and user attributes;
• then allowing multicasting at the network device including adding, deleting or modifying corresponding user information in the first user layer control block.