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[liberationtech] Important Iranian Filternet Changes

Collin Anderson collin at
Sun May 5 03:57:35 PDT 2013

Readers of Libtech may be interested in the changes to the filtering regime
that were imposed a few hours ago. Currently traffic streams, at least
unknown streams if not all, are being dropped after exactly sixty seconds,
terminating the connection. It appears this is based on protocol rather
than port, implying DPI, and thus likely to disrupt nearly every
anti-filtering tool, including those that leverage obfsproxy.

tcpdump screenshot, need to clean pcap:

*Collin David Anderson* | @cda | Washington, D.C.
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