Electrical computers and digital processing systems: multicomput – Computer network managing – Computer network monitoring
Reexamination Certificate
2002-12-24
2011-10-11
Chea, Philip (Department: 2492)
Electrical computers and digital processing systems: multicomput
Computer network managing
Computer network monitoring
C709S223000, C370S300000, C370S474000
Reexamination Certificate
active
08037167
ABSTRACT:
The present invention is a method and apparatus for counting the number of active hosts behind network address translation boxes. The technique is based on the observation that on many operating systems, the IP header's ID field is a simple counter. By suitable processing of trace data, packets emanating from individual machines can be isolated, and the number of machines determined.
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Akerman & Senterfitt
AT&T Intellectual Property II, LP
Chea Philip
Dixon Michael K.
Nash Lashanya
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