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United States Patent | 6,947,978 |
Huffman , et al. | September 20, 2005 |
Method for geolocating logical network addresses on electronically switched dynamic communications networks, such as the Internet, using the time latency of communications to and from the logical network address to determine its location. Minimum round-trip communications latency is measured between numerous stations on the network and known network addressed equipment to form a network latency topology map. Minimum round-trip communications latency is also measured between the stations and the logical network address to be geolocated. The resulting set of minimum round-trip communications latencies is then correlated with the network latency topology map to determine the location of the network address to be geolocated.
Inventors: | Huffman; Stephen Mark (Sandy Spring, MD), Reifer; Michael Henry (Columbia, MD) |
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Assignee: | The United States of America as represented by the Director, National Security Agency (Washington, DC) |
Family ID: | 25028345 |
Appl. No.: | 09/752,898 |
Filed: | December 29, 2000 |
Current U.S. Class: | 709/220; 370/455; 370/456; 455/456.1; 709/219; 709/225 |
Current CPC Class: | H04L 29/12009 (20130101); H04L 29/12207 (20130101); H04L 61/20 (20130101); H04L 43/0852 (20130101); H04L 41/12 (20130101) |
Current International Class: | H04L 29/12 (20060101); H04L 12/24 (20060101); G06F 015/177 () |
Field of Search: | ;709/220,219,225 ;370/455,456 ;455/456.1 |
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