[tor-bugs] #6771 [Tor Directory Authority]: Change AuthDirPublishIPv6 (default: 0) somehow

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#6771: Change AuthDirPublishIPv6 (default: 0) somehow
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 Reporter:  ln5                      |          Owner:                    
     Type:  defect                   |         Status:  new               
 Priority:  normal                   |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor Directory Authority  |        Version:                    
 Keywords:  ipv6                     |         Parent:                    
   Points:                           |   Actualpoints:                    
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 The config option AuthDirPublishIPv6 is a BOOL defaulting to 0. When
 not set, auths don't publish "a" lines, they don't even put "a" lines
 in votes.

 The option came up when we thought we needed a way to make Tonga stop
 this IPv6 thing before the world falls apart without having to install
 another version of tor. Is this a proper precaution?

 If we want this option for some testing period it's a temporary option
 and we should either document it as such in the man page and the
 release notes or maybe remove it from the man pages alltogether.

 If we trust our new code enough we could either keep the option and
 let it default to 1 or just remove the option.

 I no longer think that we will break existing functionality by
 including "a" lines in consensus. I'd like to see "a" lines in
 consensus as soon as possible but I'd like them to point at actual
 working IPv6 OR ports.  I suggest we remove AuthDirPublishIPv6 and let
 AuthDirHasIPv6Connectivity (default: 0) decide whether an authority
 votes on "a" lines or not.

 This will make the number of dir auths voting for "a" lines low to
 begin with but that won't stop "a" lines from going into consensus --
 we don't have a floor on how many votes an "a" line needs and a vote
 not containing an "a" line doesn't count as a negative vote.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6771>
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