Information communication system, information communication apparatus and method, and computer program
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 26, 2011
Grant Date -
Jan 25, 2007
app pub date -
Jul 6, 2006
filing date -
Jul 22, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an information communication system, information communication devices exchange an IP packet over IP networks. When performing a predetermined packet exchanging procedure in which the number of router hops is limited to a predetermined control value or less, each of the information communication devices monitors Time-To-Live values designated in the headers of IP packets received over a period of time from the start of the predetermined packet exchanging procedure to immediately before the end of the predetermined packet exchanging procedure to continuously update the maximum Time-To-Live value of the monitored Time-To-Live values, and checks whether the maximum Time-To-Live value does not exceed the control value.
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