[tor-bugs] #24777 [Core Tor/Tor]: Make relays try IPv6 ORPorts for directory uploads and downloads

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#24777: Make relays try IPv6 ORPorts for directory uploads and downloads
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 Reporter:  teor                                 |          Owner:  (none)
     Type:  defect                               |         Status:  new
 Priority:  Low                                  |      Milestone:  Tor:
                                                 |  unspecified
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  ipv6, tor-relay,                     |  Actual Points:
  034-triage-20180328, 034-removed-20180328      |
Parent ID:  #24403                               |         Points:  1
 Reviewer:                                       |        Sponsor:
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Old description:

> Using IPv6 ORPorts will make relay behaviour consistent with future
> client behaviour.
>
> The only difference is that relays will also use IPv4 DirPorts, but
> clients will not.

New description:

 Using IPv6 ORPorts will make relay behaviour consistent with future client
 behaviour.

 The only difference is that relays will also use IPv4 DirPorts, but
 clients will not.

 Relays should try to upload descriptors using IPv4 and IPv6 as well, to
 detect authority connectivity issues.

--

Comment (by teor):

 Relays should try to upload descriptors using IPv4 and IPv6 as well, to
 detect authority connectivity issues.

 We might want to do both every time, or choose IPv4 or IPv6 at random, and
 fall back to the other address family if the first upload fails.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24777#comment:7>
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