Changes between Initial Version and Version 1 of doc/OONI/Tests/RSTPacketDetection


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Timestamp:
Jun 16, 2012, 5:07:21 PM (7 years ago)
Author:
hellais
Comment:

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  • doc/OONI/Tests/RSTPacketDetection

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     1'''What it detects'''
     2
     3   * Detects the presence of a DPI device that sends TCP RST packets when it detects an offending connection
     4
     5'''Inputs'''
     6
     7   * A list of IP:port pairs to be tested.
     8
     9'''Experiment'''
     10
     11   * A TCP Connect scan is made to the remote IP:PORT
     12
     13'''Control'''
     14
     15   * If for the TCP connect we get back a RST packet then there is a DPI device injecting RST packets.
     16 
     17'''Output'''
     18
     19   * What IP:ports are being blocked using this technique.
     20
     21
     22'''Notes'''
     23
     24This is the kind of censorship that is happening in china as illustrated in this paper: http://www.cl.cam.ac.uk/~rnc1/ignoring.pdf