[tor-bugs] #4565 [Core Tor/Tor]: Enable relays to talk to other relays via IPv6

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#4565: Enable relays to talk to other relays via IPv6
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 Reporter:  karsten                      |          Owner:  ln5
     Type:  project                      |         Status:  assigned
 Priority:  Medium                       |      Milestone:  Tor:
                                         |  unspecified
Component:  Core Tor/Tor                 |        Version:
 Severity:  Normal                       |     Resolution:
 Keywords:  ipv6 tor-relay needs-design  |  Actual Points:
Parent ID:  #5788                        |         Points:  5
 Reviewer:                               |        Sponsor:
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Comment (by teor):

 Replying to [comment:10 arma]:
 > The roadmap in #4556 basically says "this relay-to-relay use of ipv6
 will happen naturally over time".
 >
 > Meaning, there isn't any discussion of whether it's a good idea to
 switch to ipv6 if both relays support it, or leave those tls connections
 on ipv4 since we still mandate all relays be able to speak ipv4.
 >
 > So: is there some advantage to moving relay communications to ipv6?
 Maybe the routing is different and better? (I could imagine the routing
 being different and worse, in the case of folks who have the more
 centralized hurricane electric ipv6 connections.)

 We'll try to answer this as part of #24403.
 But I think the answer will be: "just use either at random".

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4565#comment:13>
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