Tele2 Saint Petersburg SIM (as12958). Tor does not connect in any mode.
All tests were performed using Tor Browser 11.0.1.
- Regular (unobfuscated) connection: no response to TCP SYN from multiple IPv4s.
- obfs4 connection: no response to TCP SYN from multiple IPv4s.
- snowflake: the connection never establishes in full and breaks after several kilobytes transferred.
- meek-asure: no response to TCP SYN on default Meek fronting domain
ajax.aspnetcdn.com:443(yes, really, also tested with curl. Domain resolves to152.199.19.160.). - obfs4 bridges requested from Tor Browser: no successful connection with
176.170.168.5, 213.135.244.242, 82.65.171.173. This is the only bridge set which Torproject returned, I’ve tried to request multiple times and also disconnected and connected again to the cellular network to change my IP.
What worked:
- obfs4 bridges requested from bridges.torproject.org: the connection establishes successfully!
- obfs4 bridges requested via email: the connection establishes successfully!
- My own obfs4 bridge in Russia: the connection establishes successfully!
All pcaps and logs are in the archive: torblock-russia-03.Dec.2021-Tele2-SPb.7z (161.2 KB)