Client side replacement of DNS addresses
First Claim
Patent Images
1. A method comprising:
- detecting a presence of a server device, said server having a server address;
when said server device is present;
sending a DHCP request;
receiving a DHCP reply comprising a DNS entry;
changing said DNS entry to said server address; and
setting a DNS lookup address to said server address;
when said server device is not present;
sending a DHCP request;
receiving a DHCP reply comprising a DNS entry; and
setting a DNS lookup address to said DNS entry.
2 Assignments
0 Petitions
Accused Products
Abstract
A DHCP response is intercepted and the DNS address in the DHCP response is placed with an address for a server device when the server device is present on a local network. When the server device is not present, the DNS address from the DHCP response is used. The server device may provide authentication, shared resources, or other services to devices within a local area network and may also serve as a gateway to other networks including the Internet.
30 Citations
20 Claims
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1. A method comprising:
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detecting a presence of a server device, said server having a server address; when said server device is present; sending a DHCP request; receiving a DHCP reply comprising a DNS entry; changing said DNS entry to said server address; and setting a DNS lookup address to said server address; when said server device is not present; sending a DHCP request; receiving a DHCP reply comprising a DNS entry; and setting a DNS lookup address to said DNS entry. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A client device comprising:
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a network interface; a controller adapted to detect if a server device is present on said network and perform a method comprising steps of; when said server device is present; sending a DHCP request; receiving a DHCP reply comprising a DNS entry; changing said DNS entry to said server address; and setting a DNS lookup address to said server address; when said server device is not present; sending a DHCP request; receiving a DHCP reply comprising a DNS entry; and setting a DNS lookup address to said DNS entry. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method comprising:
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connecting to a server device to a network with a client device; installing a client filter driver on said client device, said client filter driver being adapted to; detect if said server device is present on said network; when said server device is present; sending a DHCP request; receiving a DHCP reply comprising a DNS entry; changing said DNS entry to said server address; and setting a DNS lookup address to said server address; when said server device is not present; sending a DHCP request; receiving a DHCP reply comprising a DNS entry; and setting a DNS lookup address to said DNS entry. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification