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Address spoofing prevention

  • US 8,363,594 B2
  • Filed: 11/08/2006
  • Issued: 01/29/2013
  • Est. Priority Date: 11/08/2006
  • Status: Active Grant
First Claim
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1. A method for establishing a radio communication link in a radio communication network comprising a wireless local network and a secured network, at least a first wireless terminal and a second wireless terminal being part of the wireless local network, at least the first wireless terminal being capable of communicating with the secured network, the radio communication network implementing layered protocol functions comprising at least Layers 1, 2 and 3 functions, the wireless terminals being identifiable by their Layer 2 and 3 addresses, the secured network comprising a database, the database comprising address correspondence information between Layer 2 and 3 addresses of terminals, the method comprising the following steps in respect of the first wireless terminal establishing a radio communication link with the second wireless terminal:

  • the first wireless terminal authenticating itself with the secured network;

    the first wireless terminal, by accessing the database and using the Layer 3 address of the second wireless terminal, obtaining the corresponding Layer 2 address of the second terminal from the address correspondence information in the database; and

    establishing in the local network the radio communication link with the second wireless terminal by using the Layer 2 address.

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