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System and method for insuring dynamic host configuration protocol operation by a host connected to a data network

  • US 7,099,338 B1
  • Filed: 02/27/1999
  • Issued: 08/29/2006
  • Est. Priority Date: 02/27/1999
  • Status: Expired due to Fees
First Claim
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1. A method for ensuring a connection to a configuration protocol server on a data network by a customer premises equipment via a network connection, the method comprising the steps of:

  • issuing a request for a customer premises equipment network address from the customer premises equipment to the configuration protocol server via the network connection;

    the network connection determining whether a connection can be made to the configuration protocol server, and if not, responding to the customer premises equipment by sending a temporary network address and a lease time to the customer premises equipment, whereby the lease time limits the time of validity of the temporary network address;

    issuing a request to renew the temporary network address when the lease time expires;

    the network connection determining whether a connection can be made to the configuration protocol server, and if not, responding to the customer premises equipment by sending an acknowledge message;

    when the network connection determines that the connection can be made to the configuration protocol, the network connection sending a NACK message declining to acknowledge the request to renew the temporary network address;

    the customer premises equipment receiving the NACK message and sending a request for the customer premises equipment network address; and

    the network connection communicating the request for the customer premises equipment network address to the configuration protocol server.

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