[tor-bugs] #31542 [Core Tor/Tor]: Cannot connect to IPv6 addresses using Tor SOCKS

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#31542: Cannot connect to IPv6 addresses using Tor SOCKS
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 Reporter:  sega01            |          Owner:  (none)
     Type:  defect            |         Status:  needs_information
 Priority:  Medium            |      Milestone:  Tor: 0.4.2.x-final
Component:  Core Tor/Tor      |        Version:  Tor: 0.4.1.5
 Severity:  Normal            |     Resolution:
 Keywords:  042-should, ipv6  |  Actual Points:
Parent ID:                    |         Points:
 Reviewer:                    |        Sponsor:
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Comment (by sega01):

 There were a ton of logs going on even without trying to generate
 activity, maybe from other connections (although I didn't think I had
 anything using it). I think most of those logs had nothing to do with this
 issue (and it was also connecting over Tor already, so that may be partly
 why).

 The issue with part-time IPv6 working (one in 20%) is with DNS. With the
 TransPort/iptables setup, IPv6 basically works 100% of the time for me.
 But I get maybe 20% of DNS to IPv6 only requests to go through.

 I did about 10 with PreferIPv6 and IPv6Traffic on. None of them worked.

 If I hit an IPv6 only hostname, it will work maybe 20% of the time. So
 IPv6 isn't totally broken, even over SOCKS.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31542#comment:7>
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