[tor-bugs] #24404 [Core Tor/Tor]: Propose a relay protover that allows IPv6 extends

Tor Bug Tracker & Wiki blackhole at torproject.org
Sun Nov 26 02:50:57 UTC 2017

#24404: Propose a relay protover that allows IPv6 extends
 Reporter:  teor                             |          Owner:  (none)
     Type:  enhancement                      |         Status:  new
 Priority:  Medium                           |      Milestone:  Tor:
                                             |  0.3.3.x-final
Component:  Core Tor/Tor                     |        Version:
 Severity:  Normal                           |     Resolution:
 Keywords:  needs-proposal, ipv6, tor-relay  |  Actual Points:
Parent ID:  #24403                           |         Points:  1
 Reviewer:                                   |        Sponsor:  SponsorV-
                                             |  can

Comment (by teor):

 We also need to decide what relays should do when:
   * An EXTEND request is received with an IPv4 and an IPv6 address (relays
 should only use IPv6 in step 2), and
   * The relay receiving the extend request supports the new protover:
     * Always use IPv4? (then we'll need another protover for client IPv6
     * Choose between IPv4 and IPv6 at random?
     * Attempt to switch between IPv4 and IPv6?
     * Do something even better?

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24404#comment:2>
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