Nokia Siemens Networks Oy

Olli-Pekka Pohjola

Antti Pietilainen

A method and communication system, are discussed, including a plurality of communication nodes connected by a data link, and a communication controller configured to allocate link-level addresses to the communication nodes. The communication nodes may be identified for communications over the data link. The communication controller is further configured to change from time to time the link-level addresses allocated to each communication node and to transmit the newly allocated link-level address to a respective communication node in an encrypted form.

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Helsinki, Finland

Olli-Pekka Pohjola