[Bug 1294807] Update Released

[Colin Watson]

The verification of the Stable Release Update for ifupdown has completed
successfully and the package has now been released to -updates.
Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regresssions.

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https://bugs.launchpad.net/bugs/1294807

Title:
  "manual" type interfaces should allow the mtu stanza

Status in “ifupdown” package in Ubuntu:
  Fix Released
Status in “ifupdown” source package in Precise:
  Fix Released

Bug description:
  [Impact] 
   * Using mtu options on manual interfaces setup with ifupdown will not work.

  [Test Case]
   * Edit /etc/networking/interface and modify a manual interface such as:

  auto eth1
  iface eth1 inet manual
      mtu 9000

  * Bring down the interface and back up.
  $ ifdown eth1
  $ ifup eth1

  * Check mtu:
  $ ip link show eth1

  It should show mtu 9000

  [Regression Potential] 
   * This code is already in Trusty.

  --

  1. Ubuntu 12.04/14.04

  3. Expected: That MTU will be set with the mtu option
  4. What happens:  You need to use pre-up/post-up ifconfig mtu to set the option

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