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Firewall providing enhanced network security and user transparency

  • US 20040103321A1
  • Filed: 11/06/2003
  • Published: 05/27/2004
  • Est. Priority Date: 02/06/1996
  • Status: Active Grant
First Claim
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1. A data processing system for processing data packets transferred over a network, the data processing system comprising:

  • a firewall, the firewall being operable to;

    receive a set of firewall policies; and

    apply the firewall policies to a data packet;

    an authentication application, the authentication application being operable to;

    receive a set of authentication policies; and

    authenticate a data packet in accordance with the authentication policies;

    at least one virtual private network, each virtual private network having an associated destination address and policies; and

    a controller being operable to;

    detect an incoming data packet;

    examine the incoming data packet for a virtual private network destination address;

    identify the policies associated with the virtual private network destination;

    if the policies include firewall policies, then call a firewall engine and apply the set of firewall policies corresponding to the virtual private network to the data packet;

    if the policies include authentication policies, then call an authentication application and apply a set of authentication policies corresponding to the virtual private network to the data packet; and

    route the data packet to the virtual private network, the virtual private network corresponding to a destination address contained in the data packet.

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