[tahoe-lafs-trac-stream] [Tahoe-LAFS] #867: use ipv6

[Tahoe-LAFS]

#867: use ipv6
-------------------------+-------------------------------------------------
     Reporter:  warner   |      Owner:  warner
         Type:           |     Status:  new
  enhancement            |
     Priority:  major    |  Milestone:  undecided
    Component:  code-    |    Version:  1.5.0
  network                |   Keywords:  ipv6 firewall twisted foolscap
   Resolution:           |  test-needed
Launchpad Bug:           |
-------------------------+-------------------------------------------------

Comment (by dawuud):

 I was testing out the IPv4 + IPv6 on a couple of servers... running an
 introducer + storage node on one and another storage node on the other. I
 noticed that it dOES NOT work to specify the following:

 {{{
 tub.port=tcp6:3456,tcp:3456
 }}}

 However it works fine if i specify the interfaces in both endpoint
 descriptor strings like so:

 {{{
 tub.port =
 tcp6:interface=2600\:3c01\:f03c\:91ff\:fe93\:d272:3456,tcp:interface=8.8.8.8:3456
 }}}

 {{{
 2016-09-21T12:48:40+0000 [twisted.internet.defer#critical] Unhandled error
 in Deferred:

 Traceback (most recent call last):
   File "/home/human/foolscap/src/foolscap/pb.py", line 537, in
 startService
     service.MultiService.startService(self)
   File "/home/human/virtenv-tahoe/local/lib/python2.7/site-
 packages/twisted/application/service.py", line 283, in startService
     service.startService()
   File "/home/human/foolscap/src/foolscap/pb.py", line 53, in startService
     d = self._ep.listen(self)
   File "/home/human/virtenv-tahoe/local/lib/python2.7/site-
 packages/twisted/internet/endpoints.py", line 470, in listen
     interface=self._interface)
 --- <exception caught here> ---
   File "/home/human/virtenv-tahoe/local/lib/python2.7/site-
 packages/twisted/internet/defer.py", line 120, in execute
     result = callable(*args, **kw)
   File "/home/human/virtenv-tahoe/local/lib/python2.7/site-
 packages/twisted/internet/posixbase.py", line 478, in listenTCP
     p.startListening()
   File "/home/human/virtenv-tahoe/local/lib/python2.7/site-
 packages/twisted/internet/tcp.py", line 983, in startListening
     raise CannotListenError(self.interface, self.port, le)
 twisted.internet.error.CannotListenError: Couldn't listen on any:3456:
 [Errno 98] Address already in use.
 2016-09-21T12:48:40+0000 [-] Listener starting on 44617
 2016-09-21T12:48:40+0000 [foolscap.pb.Listener#info] Starting factory
 <Listener at 0x7fd04ff73d90 on
 <twisted.internet.endpoints.TCP4ServerEndpoint object at 0x7fd04ff73dd0>
 with tub yi45keoq72z3ce3jrug2wxxwy4f6rc2l>
 2016-09-21T12:48:40+0000 [-] Listener starting on 57245
 2016-09-21T12:48:40+0000 [foolscap.pb.Listener#info] Starting factory
 <Listener at 0x7fd04ff73ed0 on
 <twisted.internet.endpoints.TCP4ServerEndpoint object at 0x7fd04ff73f10>
 with tub u4ppdne5ehcwacdz3ccivfm3usotpxgj>
 2016-09-21T12:48:40+0000 [-] client running
 }}}

 i've posted a PR to fix the configuration docs here:
 https://github.com/tahoe-lafs/tahoe-lafs/pull/352

--
Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/867#comment:42>
Tahoe-LAFS <https://Tahoe-LAFS.org>
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