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Abstract

A method and apparatus for use in an internet service provider environment (10), for providing internet (20) access to a plurality of subscriber environments. A packet intended for a destination subscriber environment is discriminated to deny the packet if it is considered insecure. Performing this discrimination in the internet service provider environment (10) allows a centralized security service for a large number of subscriber environments (30) each having internet access through the internet service provider environment (10). Each subscriber environment (30) is maintained in a secure state to inhibit subversion such as by malicious attacks, even where the subscriber environment (30) is allocated a static IP address and maintains connection for a relatively long duration session. Also, technical expertise required of a subscriber operating the subscriber environment (30) is minimized.

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First Claim