Re: [tor-bugs] #19610 [Core Tor/Tor]: IPv6-only clients fetch microdescriptors from 15/25 IPv6 fallbacks

[Tor Bug Tracker & Wiki]

#19610: IPv6-only clients fetch microdescriptors from 15/25 IPv6 fallbacks
-+-
 Reporter:  teor |  Owner:
 Type:  defect   | Status:  new
 Priority:  Medium   |  Milestone:  Tor:
 |  unspecified
Component:  Core Tor/Tor |Version:  Tor:
 |  0.2.8.4-rc
 Severity:  Normal   | Resolution:
 Keywords:  ipv6, microdesc, fallbacks, triage-  |  Actual Points:
  out-030-201612 |
Parent ID:  #17217   | Points:  1
 Reviewer:   |Sponsor:
-+-
Changes (by teor):

 * parent:   => #17217
 * milestone:  Tor: 0.3.1.x-final => Tor: unspecified


Comment:

 #19608 was fixed in 0.3.0.2-alpha, and we mitigated this issue by
 selecting 53 IPv6 fallbacks in #18828. We should continue to choose 200+
 fallbacks, and encourage relay operators to enable their IPv6 ORPorts.

 This will not be an issue until clients use IPv6 by default (#17217).

--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #19610 [Core Tor/Tor]: IPv6-only clients fetch microdescriptors from 15/25 IPv6 fallbacks

[Tor Bug Tracker & Wiki]

#19610: IPv6-only clients fetch microdescriptors from 15/25 IPv6 fallbacks
+--
 Reporter:  teor|  Owner:
 Type:  defect  | Status:  new
 Priority:  Medium  |  Milestone:  Tor:
|  0.3.0.x-final
Component:  Core Tor/Tor|Version:  Tor: 0.2.8.4-rc
 Severity:  Normal  | Resolution:
 Keywords:  ipv6, microdesc, fallbacks  |  Actual Points:
Parent ID:  | Points:  1
 Reviewer:  |Sponsor:
+--

Comment (by teor):

 #19989 makes this worse - tor clients won't fetch microdescriptors from
 Exits.

--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #19610 [Core Tor/Tor]: IPv6-only clients fetch microdescriptors from 15/25 IPv6 fallbacks

[Tor Bug Tracker & Wiki]

#19610: IPv6-only clients fetch microdescriptors from 15/25 IPv6 fallbacks
+--
 Reporter:  teor|  Owner:
 Type:  defect  | Status:  new
 Priority:  Medium  |  Milestone:  Tor:
Component:  Core Tor/Tor|  0.3.0.x-final
 Severity:  Normal  |Version:  Tor: 0.2.8.4-rc
 Keywords:  ipv6, microdesc, fallbacks  | Resolution:
Parent ID:  |  Actual Points:
 Reviewer:  | Points:  1
|Sponsor:
+--

Comment (by teor):

 One way of fixing this issue is to make IPv6-only clients use the regular
 consensus.

--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #19610 [Core Tor/Tor]: IPv6-only clients fetch microdescriptors from 15/25 IPv6 fallbacks

[Tor Bug Tracker & Wiki]

#19610: IPv6-only clients fetch microdescriptors from 15/25 IPv6 fallbacks
+--
 Reporter:  teor|  Owner:
 Type:  defect  | Status:  new
 Priority:  Medium  |  Milestone:  Tor:
Component:  Core Tor/Tor|  0.3.0.x-final
 Severity:  Normal  |Version:  Tor: 0.2.8.4-rc
 Keywords:  ipv6, microdesc, fallbacks  | Resolution:
Parent ID:  |  Actual Points:
 Reviewer:  | Points:  1
|Sponsor:
+--
Changes (by teor):

 * milestone:   => Tor: 0.3.0.x-final


--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

[tor-bugs] #19610 [Core Tor/Tor]: IPv6-only clients fetch microdescriptors from 15/25 IPv6 fallbacks

[Tor Bug Tracker & Wiki]

#19610: IPv6-only clients fetch microdescriptors from 15/25 IPv6 fallbacks
--+
 Reporter:  teor  |  Owner:
 Type:  defect| Status:  new
 Priority:  Medium|  Milestone:
Component:  Core Tor/Tor  |Version:  Tor: 0.2.8.4-rc
 Severity:  Normal|   Keywords:  ipv6, microdesc, fallbacks
Actual Points:|  Parent ID:
   Points:  1 |   Reviewer:
  Sponsor:|
--+
 When an IPv6-only client bootstraps using microdescriptors (#19608), it
 fetches the microdescriptor consensus from an IPv6 fallback, but the
 microdescriptor consensus has no IPv6 addresses.

 So it falls back to the fallback directories, fetching ~7500/500 = 15 sets
 of descriptors from 15 of the 25 IPv6 fallbacks.

 We should improve this behaviour somehow, to avoid overloading the
 fallbacks. One simple way of doing this is selecting 200 fallbacks for
 0.2.9 in #18828.

 It's worth noting that this extra load only happens on bootstrap, when
 there are no cached microdescriptors. If an IPv6-only client has any IPv6
 microdescriptors that match the current consensus, it will use those
 relays instead.

--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs