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Computer networks with unique identification

  • US 8,930,573 B2
  • Filed: 07/01/2011
  • Issued: 01/06/2015
  • Est. Priority Date: 06/15/2001
  • Status: Expired due to Term
First Claim
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1. A computer network system, including:

  • a plurality of client nodes in a private network, each node having a unique data-link layer address;

    at least one network device in the private network that is able to access the unique data-link layer address of at least one client node of the plurality; and

    a Network Address Translator for mapping a client node IP address to an assigned IP address;

    wherein the at least one network device is configured to;

    use the accessed data-link layer address to uniquely identify the at least one client node;

    determine positional information of the at least one client node as a physical location within the private network, a logical location within the private network, or a combination thereof, wherein the physical location is indicated by an NIC number of a router receiving packets from the at least one client node and the logical location is indicated by a VLAN ID; and

    provide user-specific services at a network layer or above to the at least one client node responsive to the positional information and associated user information corresponding with the unique data-link layer address of the at least one client node; and

    wherein the Network Address Translator is configured to use the physical location information in the mapping of the client node IP address to the assigned IP address.

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