[anti-censorship-team] Snowflake (DTLS) block in Russia

ValdikSS iam at valdikss.org.ru
Mon Dec 6 17:53:55 UTC 2021


Hello eveyone,

There's ongoing Tor block on certain Russian ISPs, which on top of 
everything else includes Snowflake censorship using DPI.

DTLS connection never establishes and gets filtered in 
ClientHello/ServerHello sequence.

Check the attached dumps from Tele2 cellular operator (as12958) made on 
3 and 6 December 2021.

More information here: 
https://ntc.party/t/ooni-reports-of-tor-blocking-in-certain-isps-since-2021-12-01/1477
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