Importance

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Abstract

A controllable port redirector comprising a stack module insertable within a communication protocol stack, preferably between the data-link and the network layer. The redirector uses a rule base, at least partially downloaded from a control host, to decide on redirection of selected packets. The invention further provides a method for communication using at least partial remotely supplied rule base. Thus communications from the computer may be remotely and transparently controlled. Optionally the invention further provide a method for providing secured communication utilizing port hopping technique, controlled by a rule set which forms a hoping order, and utilizing different rules of packets from the same transmission stream, thus increasing the difficulty in monitoring the stream as a whole. Other services that may be established by the invention include replacing certain servers like DNS servers, providing a walled garden communication environment, and the like.

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First Claim