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[Andy Whitcroft <apw@xxxxxxxxxxxxx>]

** Changed in: ubuntu-fan (Ubuntu)
       Status: New => In Progress

** Changed in: ubuntu-fan (Ubuntu)
   Importance: Undecided => Critical

** Changed in: ubuntu-fan (Ubuntu)
     Assignee: (unassigned) => Andy Whitcroft (apw)

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https://bugs.launchpad.net/bugs/1584878

Title:
  fanatic remote host test fails when using non-default subnet sizes

Status in ubuntu-fan package in Ubuntu:
  In Progress

Bug description:
  When conducting the remote host testing, fanatic incorrectly
  calculates the ip for the remote test host on the Fan.

  My remote host ip's are 192.168.1.3 and 192.168.1.10.  I'm using non-
  default subnet sizes for the overlay/underlays (ie -o 250.99.0.0/16
  and -u 192.168.1.0/24).  Both LXD and Docker tests pass, but, as
  noted, the remote host testing fails:

  test slave: ping test (250.99.1.4) ...
  test slave: ping test ... FAIL

  You'll notice the ip is incorrect, 250.99.1.4.  It should be
  250.99.3.1 in this example.

  Raw output of failing fanatic test run is below:

  $ sudo fanatic
  Welcome to the fanatic fan networking wizard.  This will help you set
  up an example fan network and optionally configure docker and/or LXD to
  use this network.  See fanatic(1) for more details.

  Configure fan underlay (hit return to accept, or specify alternative) [192.168.0.0/16]: 192.168.1.0/24
  Configure fan overlay (hit return to accept, or specify alternative) [250.0.0.0/8]: 250.99.0.0/16
  Create LXD networking for underlay:192.168.1.0/24 overlay:250.99.0.0/16 [Yn]: Y
  Profile fan-250-99 created
  Create docker networking for underlay:192.168.1.0/24 overlay:250.99.0.0/16 [Yn]: Y
  Test LXD networking for underlay:192.168.1.10/24 overlay:250.99.0.0/16
  (NOTE: potentially triggers large image downloads) [Yn]: Y
  local lxd test: creating test container (Ubuntu:16.04) ...
  Creating fanatic-test
  Starting fanatic-test
  lxd test: Waiting for addresses on eth0 ...
  lxd test: Waiting for addresses on eth0 ...
  lxd test: Waiting for addresses on eth0 ...
  lxd test: Waiting for addresses on eth0 ...
  test master: ping test (250.99.10.166) ...
  test slave: ping test (250.99.10.1) ...
  test master: ping test ... PASS
  test master: short data test (250.99.10.1 -> 250.99.10.166) ...
  test slave: ping test ... PASS
  test slave: short data test (250.99.10.166 -> 250.99.10.1) ...
  test slave: short data ... PASS
  test master: short data ... PASS
  test slave: long data test (250.99.10.166 -> 250.99.10.1) ...
  test master: long data test (250.99.10.1 -> 250.99.10.166) ...
  test master: long data ... PASS
  test slave: long data ... PASS
  local lxd test: destroying test container ...
  local lxd test: test complete PASS (master=0 slave=0)
  Test docker networking for underlay:192.168.1.10/24 overlay:250.99.0.0/16
  (NOTE: potentially triggers large image downloads) [Yn]: Y
  local docker test: creating test container ...
  e47583ee4f18c95edfcb28e5b2514c0924527f30b3485f62d343fe8bf1000170
  test master: ping test (250.99.10.0) ...
  test slave: ping test (250.99.10.1) ...
  test master: ping test ... PASS
  test master: short data test (250.99.10.1 -> 250.99.10.0) ...
  test slave: ping test ... PASS
  test slave: short data test (250.99.10.0 -> 250.99.10.1) ...
  test slave: short data ... PASS
  test master: short data ... PASS
  test slave: long data test (250.99.10.0 -> 250.99.10.1) ...
  test master: long data test (250.99.10.1 -> 250.99.10.0) ...
  test master: long data ... PASS
  test slave: long data ... PASS
  local docker test: destroying test container ...
  fanatic-test
  fanatic-test
  local docker test: test complete PASS (master=0 slave=0)
  This host IP address: 192.168.1.10
  Remote test host IP address (none to skip): 192.168.1.3
  host test: starting ...
  test slave: ping test (250.99.1.4) ...
  test slave: ping test ... FAIL
  --- transcript start ---
  PING 250.99.1.4 (250.99.1.4) 56(84) bytes of data.
  From 250.99.10.1 icmp_seq=1 Destination Host Unreachable
  From 250.99.10.1 icmp_seq=2 Destination Host Unreachable
  From 250.99.10.1 icmp_seq=3 Destination Host Unreachable
  From 250.99.10.1 icmp_seq=4 Destination Host Unreachable
  From 250.99.10.1 icmp_seq=5 Destination Host Unreachable

  --- 250.99.1.4 ping statistics ---
  5 packets transmitted, 0 received, +5 errors, 100% packet loss, time 3998ms
  pipe 3
  --- transcript end ---
  test slave: short data test (250.99.10.1 -> 250.99.1.4) ...

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