[tor-bugs] #24407 [Core Tor/Tor]: No warning when IPv6 port is not reachable

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

#24407: No warning when IPv6 port is not reachable
------------------------------+--------------------------
     Reporter:  MikeEU        |      Owner:  (none)
         Type:  enhancement   |     Status:  new
     Priority:  Medium        |  Milestone:
    Component:  Core Tor/Tor  |    Version:  Tor: 0.3.1.8
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
------------------------------+--------------------------
 Case:
 Running relay on IPv4. All checks ok, running good.
 Stop relay, add ORPort for IPv6.
 Restart. Checks look ok, circuits are built up.
 After a while, no new users are added, but circuits disappear and relay is
 reported as off line in atlas. This lasted for over a day.

 Reason: IPv6 port was blocked by firewall. This was not reported in the
 error logs (but was tested, hence the relay being reported offline).
 Unblock IPv6 port places the relay 'online' again, and all works well.

 Request: report on IPv6 port not reachable. This would have saved quite
 some time and searching.
 Question/discussion: should a relay go offline when IPv4 works, but only
 IPv6 has problems? And what happens if IPv4 is taken off completely?

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24407>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

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