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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1540586

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1540586

Title:
  Hyper-V] Netmask value is not parsed by hv_set_ifconfig - IP injection

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  This bug is a continuation to bug ID 1506521 - the refreshed
  hv_set_ifconfig script in Python3.

  On a Wily system with the new script, doing an IP injection does change the IP on the VM, however the netmask value is not parsed and gets ignored.
  It gets set to a default of 255.0.0.0.

  Kernel: 4.2.0-23-generic

  Generated ifcfg-eth0 file:
  /var/lib/hyperv/ifcfg-eth0

  Sample contents:
  HWADDR=00:15:5D:XX:XX:XX
  DEVICE=eth0
  BOOTPROTO=none
  IPADDR0=10.123.120.12
  NETMASK0=255.255.254.0
  GATEWAY=10.123.119.1
  DNS1=anything

  syslog doesn't record any related events to the netmask, and also
  manually executing hv_set_ifconfig against the generated ifcfg works
  with no errors.

  The interfaces files gets modified to this:
  iface eth0 inet static
          address 10.123.120.199
          gateway 10.123.119.1
          dns-nameservers anything_changed

  #End of hv_set_ifconfig stanzas

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