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

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

 Two concrete suggestions:

  1. Try an obfs2 or obfs3 bridge on port 443. Perhaps the cyberoam device
 fail-opens when it can't recognise the protocol.
  1. Try a bridge (obfuscated or vanilla) on an unblocked port other than
 443. After all, the obfs bridges might not have worked because the
 cyberoam device blocks the ports with a RST. This freeport scanner thingy
 suggests 135, 139, 445 (even though 443 should work); not sure if that
 should be trusted but we could give it a try. Unfortunately, those ports
 are privileged but we could use port forwarding on a bridge.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9601#comment:14>
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