[tor-bugs] #24405 [Core Tor/Tor]: Implement relay IPv6 extends with proposed protover

[Tor Bug Tracker & Wiki]

#24405: Implement relay IPv6 extends with proposed protover
-----------------------------+---------------------------------------------
     Reporter:  teor         |      Owner:  (none)
         Type:  enhancement  |     Status:  new
     Priority:  Medium       |  Milestone:  Tor: 0.3.3.x-final
    Component:  Core         |    Version:
  Tor/Tor                    |
     Severity:  Normal       |   Keywords:  needs-proposal, ipv6, tor-relay
Actual Points:               |  Parent ID:  #24403
       Points:  1            |   Reviewer:
      Sponsor:  SponsorV-    |
  can                        |
-----------------------------+---------------------------------------------
 Make relays with IPv6 ORPorts start attempting to connect to IPv6 ORPorts
 in response to EXTEND2 cells containing IPv6 addresses. (Relays always
 prefer existing canonical connections, which may be over IPv4.)

 Make these relays declare the protover from #24404.

 Make them implement the IPv4/IPv6 Extend behviour from #24404.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24405>
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