[Bug 1074048] [NEW] When setting up a GRE tunnel through the 'tunnel' method, the mtu parameter is not respected

[Giorgos Mavrikas]

Public bug reported:

When setting up the following gre tunnel, the mtu parameter is not set.

auto gtun
iface gtun inet tunnel
  mode gre
  address 172.19.6.1
  dstaddr 172.19.6.2
  netmask 255.255.255.255
  endpoint xxx.xxx.xxx.xxx
  local yyy.yyy.yyy.yyy
  mtu 1396
  ttl 255

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: ifupdown 0.7~beta2ubuntu8
ProcVersionSignature: Ubuntu 3.2.0-23.36-virtual 3.2.14
Uname: Linux 3.2.0-23-virtual x86_64
ApportVersion: 2.0.1-0ubuntu14
Architecture: amd64
Date: Thu Nov  1 16:13:51 2012
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ifupdown
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ifupdown (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise

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https://bugs.launchpad.net/bugs/1074048

Title:
  When setting up a GRE tunnel through the 'tunnel' method, the mtu
  parameter is not respected

Status in “ifupdown” package in Ubuntu:
  New

Bug description:
  When setting up the following gre tunnel, the mtu parameter is not
  set.

  auto gtun
  iface gtun inet tunnel
    mode gre
    address 172.19.6.1
    dstaddr 172.19.6.2
    netmask 255.255.255.255
    endpoint xxx.xxx.xxx.xxx
    local yyy.yyy.yyy.yyy
    mtu 1396
    ttl 255

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: ifupdown 0.7~beta2ubuntu8
  ProcVersionSignature: Ubuntu 3.2.0-23.36-virtual 3.2.14
  Uname: Linux 3.2.0-23-virtual x86_64
  ApportVersion: 2.0.1-0ubuntu14
  Architecture: amd64
  Date: Thu Nov  1 16:13:51 2012
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ifupdown
  UpgradeStatus: No upgrade log present (probably fresh install)

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