[tor-bugs] #17850 [Tor]: other relays can confuse NATed relays

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#17850: other relays can confuse NATed relays
-----------------------------+-----------------
     Reporter:  herzi        |      Owner:
         Type:  enhancement  |     Status:  new
     Priority:  Medium       |  Milestone:
    Component:  Tor          |    Version:
     Severity:  Normal       |   Keywords:
Actual Points:               |  Parent ID:
       Points:               |    Sponsor:
-----------------------------+-----------------
 This is from `/var/log/tor/log`:

 {{{
 Dec 13 02:21:00.000 [notice] Our IP Address has changed from 91.45.222.226
 to 104.233.75.228; rebuilding descriptor (source: 104.233.75.165).
 Dec 13 02:21:12.000 [notice] We'd like to launch a circuit to handle a
 connection, but we already have 32 general-purpose client circuits
 pending. Waiting until some finish. [701 similar message(s) suppressed in
 last 600 seconds]
 Dec 13 02:21:35.000 [notice] Our IP Address has changed from
 104.233.75.228 to 91.45.222.226; rebuilding descriptor (source:
 217.79.179.177).
 }}}

 It looks like `.228` is confused causes my relay to advertise the wrong IP
 address for several seconds.

 Maybe a NATed OR should self-test its reachability before advertising the
 new IP address.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17850>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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