| 摘要 |
A method of exchanging information by the Internet protocol in the form of datagrams each including a TOS field normally dedicated to receiving routing parameters, the method comprising the steps of: configuring network equipment to define an identification zone in the TOS field; associating equipment of a first type with identifiers that can be encoded in said identification zone; and on a piece of equipment of the first type sending a datagram to a piece of equipment of the second type, encoding the identifier of the piece of equipment of the first type in question in the identification zone, and on the datagram being received by the equipment of the second type, checking that the identifier appears in a table of authorized identifiers prior to accepting the datagram.
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