[tor-bugs] #4563 [Tor Client]: Enable clients to talk to public bridges via IPv6

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#4563: Enable clients to talk to public bridges via IPv6
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 Reporter:  karsten     |          Owner:                          
     Type:  project     |         Status:  assigned                
 Priority:  normal      |      Milestone:  Sponsor G: June 30, 2012
Component:  Tor Client  |        Version:                          
 Keywords:              |         Parent:                          
   Points:              |   Actualpoints:                          
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Comment(by karsten):

 Here are some notes from Nick, Roger, Linus, and I discussing the topic
 yesterday:

  * The bridge authority can rather easily do reachability tests for IPv6
 bridges, because these tests are done directly.

  * The bridge authority should include the Running flag if the bridge is
 reachable over the IPv4 OR address and port stated in the router line of
 its descriptor.  This is for backwards compatibility reasons.  A bridge
 which is reachable over IPv4 while announcing a misconfigured IPv6 address
 should still be given out to IPv4 clients.

  * The bridge authority should include all parts of or-address lines for
 which it can confirm reachability.  If the bridge authority can confirm
 bridge reachability for only a subset of ports of a given or-address line,
 it should include only these ports in the "a" line of the bridge network
 status entry.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4563#comment:2>
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