[tor-bugs] #15235 [Tor]: Identify the state of IPv6 support in Tor

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#15235: Identify the state of IPv6 support in Tor
-------------------------------------------------+-------------------------
 Reporter:  nickm                                |          Owner:
     Type:  task                                 |         Status:
 Priority:  Medium                               |  assigned
Component:  Tor                                  |      Milestone:  Tor:
 Severity:  Normal                               |  0.2.8.x-final
 Keywords:  tor-client, tor-relay, ipv6,         |        Version:
  research, 027-triaged-1-out                    |     Resolution:
Parent ID:                                       |  Actual Points:
  Sponsor:                                       |         Points:  medium
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Changes (by teor):

 * severity:   => Normal


Comment:

 The current state of IPv6 for clients is:
 * 5 directory authorities have IPv6 addresses
   * these addresses aren't hardcoded into tor, nor would they be parsed if
 they were (#17327)
 * Tor doesn't know how to tell if IPv6 works, so it just uses IPv4 by
 default (#17217)
 * Tor doesn't have a setting to disable IPv4 (#9068)
 * Tor won't bootstrap over IPv6 (#17281)
 * Tor doesn't listen on IPv6 by default on the SOCKSPort (#11360)

 (#6027 used to be about IPv6 on authorities, but we closed it because it
 was duplicated by a lot of other tickets and existing code.)

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15235#comment:6>
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