Anti-spoofing system and method

摘要

A method for preventing network address spoofing within a wireless local area network (LAN) that includes an access controller and first and second radio units. The method first associates a first mobile unit to the first radio unit, determines the network address of the first mobile unit and maintains a connectivity record that contains the network address and identifies that the first radio unit has been associated with. If a second mobile unit requests association with the second radio unit then the network address of the second mobile unit is determined. If the network address of the second mobile unit is the same as the network address of the first mobile unit then the connectivity record associated with the network address of said first and second mobile units is checked. If the connectivity record indicates an association with the first radio unit then an anti-spoofing protocol is executed.