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Enhancing DNS availability

  • US 9,912,634 B2
  • Filed: 03/12/2015
  • Issued: 03/06/2018
  • Est. Priority Date: 03/12/2015
  • Status: Active Grant
First Claim
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1. A method for providing an address for a Domain Name System (DNS) server to a consumer device, wherein the consumer device connects to the Internet through a vehicle, the method comprising the steps of:

  • providing an address for a default DNS server and a lease time to the consumer device via a dynamic host configuration protocol (DHCP) using a vehicle DHCP server;

    receiving a request from the consumer device to convert a domain name to an Internet Protocol (IP) address using the default DNS server;

    maintaining a list of DNS servers in the vehicle hardware, wherein the DNS servers are ranked according to performance characteristics, wherein maintaining the list includes monitoring the performance characteristics of the DNS servers and updating the rankings of the DNS servers based on the monitored performance characteristics; and

    using the vehicle DHCP server, updating the consumer device via DHCP with a different address for a DNS server retrieved from the list when the address for the default DNS server is not valid or when the default DNS server is unavailable to process the request.

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