[tor-bugs] #9601 [Obfsproxy]: Cyberoam firewall blocks obfs2/3 bridge addresses

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#9601: Cyberoam firewall blocks obfs2/3 bridge addresses
---------------------------+-----------------
     Reporter:  Sherief    |      Owner:  asn
         Type:  task       |     Status:  new
     Priority:  normal     |  Milestone:
    Component:  Obfsproxy  |    Version:
   Resolution:             |   Keywords:
Actual Points:             |  Parent ID:
       Points:             |
---------------------------+-----------------

Comment (by mrphs):

 I've just checked RT to see if the user has respond, here's some
 interesting log he sent on RT:

 {{{
 Aug 27 23:56:15.450 [Notice] Tor v0.2.4.16-rc (git-889e9bd529297284)
 running on Windows 7 with Libevent 2.0.21-stable and OpenSSL 1.0.0k.
 Aug 27 23:56:15.450 [Notice] Tor can't help you if you use it wrong! Learn
 how to be safe at https://www.torproject.org/download/download#warning
 Aug 27 23:56:15.450 [Notice] Read configuration file
 "xx\Tor Browser\Data\Tor\torrc".
 Aug 27 23:56:15.450 [Notice] Opening Socks listener on 127.0.0.1:9150
 Aug 27 23:56:15.450 [Notice] Opening Control listener on 127.0.0.1:9151
 Aug 27 23:56:15.450 [Notice] Parsing GEOIP IPv4 file .\Data\Tor\geoip.
 Aug 27 23:56:15.668 [Notice] Parsing GEOIP IPv6 file .\Data\Tor\geoip6.
 Aug 27 23:56:20.757 [Notice] Bootstrapped 5%: Connecting to directory
 server.
 Aug 27 23:56:21.201 [Notice] Bootstrapped 10%: Finishing handshake with
 directory server.
 Aug 27 23:56:22.635 [Warning] Tried connecting to router at
 212.112.xx:443, but identity key was not as expected: wanted
 F2044413DAC2E02E3D6BCF4735A19BCA1DE97281 but got
 FA00CC092639AC62C03E148F4A10C2787C129668.
 }}}

 note the last 3 lines.
 and then he tries adding more bridges...

 {{{
 Aug 28 01:16:53.294 [Notice] Tor v0.2.4.16-rc (git-889e9bd529297284)
 running on Windows 7 with Libevent 2.0.21-stable and OpenSSL 1.0.0k.
 Aug 28 01:16:53.294 [Notice] Tor can't help you if you use it wrong! Learn
 how to be safe at https://www.torproject.org/download/download#warning
 Aug 28 01:16:53.294 [Notice] Read configuration file
 "xx\Tor Browser\Data\Tor\torrc".
 Aug 28 01:16:53.294 [Notice] Opening Socks listener on 127.0.0.1:9150
 Aug 28 01:16:53.294 [Notice] Opening Control listener on 127.0.0.1:9151
 Aug 28 01:16:53.294 [Notice] Parsing GEOIP IPv4 file .\Data\Tor\geoip.
 Aug 28 01:16:53.509 [Notice] Parsing GEOIP IPv6 file .\Data\Tor\geoip6.
 Aug 28 01:16:59.925 [Notice] Bootstrapped 5%: Connecting to directory
 server.
 Aug 28 01:17:00.017 [Notice] Bootstrapped 10%: Finishing handshake with
 directory server.
 Aug 28 01:17:00.784 [Notice] Learned fingerprint
 FA00CC092639AC62C03E148F4A10C2787C129668 for bridge 109.91.xx.xx:443.
 Aug 28 01:17:00.786 [Notice] Bootstrapped 15%: Establishing an encrypted
 directory connection.
 Aug 28 01:18:00.924 [Notice] No circuits are opened. Relaxed timeout for
 circuit 2 (a General-purpose client 1-hop circuit in state doing
 handshakes
 with channel state open) to 60000ms. However, it appears the circuit has
 timed out anyway. 0 guards are live.
 }}}

 Compare the fingerprints.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9601#comment:5>
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