Detection of duplicated network addresses

Details Detection of duplicated network addresses Detection of duplicated network addresses

2011-02-01

2011-02-01

Ryman, Daniel J (Department: 2466)

Multiplex communications

Network configuration determination

C370S401000, C709S224000

Reexamination Certificate

active

07881224

ABSTRACT:
The present invention relates to an access unit for coupling a plurality of subscribers to a data communication network, and comprising an auto-configuration control unit adapted to learn, from first auto-configuration data issued by an auto-configuration server and transiting through said access unit towards a particular subscriber coupled to said access unit, a particular network address as being dynamically assigned to said particular subscriber.An access unit according to the invention is characterized in that said auto-configuration control unit is further adapted to learn, from second auto-configuration data transiting through said data communication network, said particular network address as being newly assigned to another subscriber, and in that said access unit further comprises an auto-configuration preemption unit coupled to said auto-configuration control unit, and adapted thereupon to issue an auto-configuration control signal towards said particular subscriber, whereby a new auto-configuration session is initiated between said particular subscriber and said auto-configuration server, and further whereby a new network address is dynamically assigned to said particular subscriber.

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