[tor-bugs] #3786 [Tor Relay]: Make clients and bridges use their IPv6 address

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#3786: Make clients and bridges use their IPv6 address
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 Reporter:  ln5        |          Owner:  ln5               
     Type:  task       |         Status:  needs_review      
 Priority:  normal     |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Relay  |        Version:                    
 Keywords:             |         Parent:  #3563             
   Points:             |   Actualpoints:                    
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Comment(by ln5):

 Replying to [comment:15 nickm]:
 > The one case where it's really important that addresses match is that we
 shouldn't connect to a bridge at any address other than the one we
 configured for it in the bridge line in our torrc.  If we've got that
 property, I think we're okay.

 A client will not connect to an IPv6 address not found in a Bridge
 line since that address won't evern show up in a bridge_info_t and
 rewrite_node_address_for_bridge() is the only place where
 ri->ipv6_preferred is set.

 A client will _hopefully_ not connect to an IPv6 address not found in
 a Bridge line but the closest to a proof that I can present for this
 is that I've tested quite a lot with clients using only an IPv6
 address to bridges not binding to an IPv4 address.

 That's the best I've got right now.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/3786#comment:19>
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