[tor-bugs] #5940 [Tor]: Figure out own IPv6 address

[Tor Bug Tracker & Wiki]

#5940: Figure out own IPv6 address
-------------------------------------------------+-------------------------
 Reporter:  ln5                                  |          Owner:
     Type:  enhancement                          |         Status:
 Priority:  Medium                               |  assigned
Component:  Tor                                  |      Milestone:  Tor:
 Severity:  Normal                               |  0.2.???
 Keywords:  ipv6, tor-relay, 026-triaged-1,      |        Version:
  026-deferrable, lorax, 027-triaged-1-out       |     Resolution:
Parent ID:                                       |  Actual Points:
  Sponsor:                                       |         Points:
-------------------------------------------------+-------------------------

Comment (by teor):

 As of 0.2.7.3-rc, we also use get_interface_address6* to discover our IPv4
 and IPv6 addresses so we can block them in the exit policy (#17027).

 Relays also allow IPv6 ORPorts to be set, and the first IPv6 ORPort is
 used as the ipv6_addr for the relay.

 Perhaps we need an option to tell relays it's ok to autodetect their IPv6
 address?
 `IPv6Relay`?
 If it's an AUTOBOOL, we could change the default in the consensus from 0
 to 1 once enough relays have upgraded, and once we check IPv6 reachability
 from the relay itself, and the authorities, and maybe the bwauths.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/5940#comment:18>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online