Method and apparatus for allowing a secure and transparent communication between a user device and servers of a data access network system via a firewall and a gateway

DC
  • US 6,751,677 B1
  • Filed: 08/24/1999
  • Issued: 06/15/2004
  • Est. Priority Date: 08/24/1999
  • Status: Expired due to Term
First Claim
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1. A method of allowing a secure and transparent communication between a user device and servers of a data access network system via a firewall and a gateway, comprising:

  • (A) designating a plurality of ports in the firewall for the gateway, each corresponding to one of a number of ports in the gateway, wherein each of the gateway ports can be dynamically assigned to correspond to the port of one of the servers;

    (B) proxifying an object reference referring to a target server of the servers which is to be accessed by a user request by replacing the IP address and the port number of the target server in the object reference with a dynamically assigned gateway port and the IP address of the gateway;

    mapping the dynamically assigned gateway port and the gateway IP address to the port and IP address of the target server; and

    sending the proxified object reference back to the user device such that the user device uses it to issue the user request to access the target server via the gateway in order to allow secure connection between the user device and the target server to be established without requiring the user request to expose the IP address and port of the target server at the gateway.

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