Enhancing DNS availability
First Claim
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.
1 Assignment
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Accused Products
Abstract
A system and 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, includes providing an address for a default DNS server to the consumer device; receiving a request from the consumer device to convert a domain name to an Internet Protocol (IP) address using the default DNS server; forwarding the request to the default DNS server; determining if the request has been resolved by the default DNS server within a time-to-respond limit; and updating the consumer device with a different address for a DNS server retrieved from a list stored in vehicle hardware if the request has not been resolved within the time-to-respond limit.
12 Citations
11 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for connecting a consumer device to the Internet and for providing an address for a Domain Name System (DNS) server to the consumer device, the system comprising:
vehicle hardware, a vehicle telematics unit, or both, individually or in combination configured to; provide an address for a default DNS server and a lease time to the consumer device via dynamic host configuration protocol (DHCP); receive a request from the consumer device to convert a domain name to an Internet Protocol (IP) address using the default DNS server; maintain a list of DNS servers in the vehicle hardware, wherein the DNS servers are ranked according to performance characteristics, and 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 update the consumer device via DHCP with 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. - View Dependent Claims (8, 9, 10, 11)
Specification