METHOD, SYSTEM, AND DEVICE FOR VERIFYING THE RELATION OF DADA LINK LAYER ADDRESS AND ITS TRANSMITTING PARTY

摘要

A method for verifying the relation of data link layer address and its transmitting party includes that: a message is received, and a data link layer address embedded with security information of the transmitting party is used as a source address by the message (101); the data link layer address is extracted (102), a corresponding parameter of the data link layer address is calculated by the first preset rule, and the calculated result is acquired (103), the corresponding parameter of the data link layer address is a gather of all the used actual parameter values during the generation of the data link layer address; when the calculated result corresponds to the data link layer address, the data link layer address is held by the transmitting party (104). A corresponding system and a device are also provided in the invention, the data link layer address of the transmitting party is verified by a receiving party, and the phenomenon of forged data link layer address is avoided, thereby the security of data transmission in the data link layer is improved.