[Bug 1136301] Re: IFACE names in /etc/network/interfaces cannot contain a hyphen, otherwise up and down commands are skipped

[Launchpad Bug Tracker]

[Expired for ifupdown (Ubuntu) because there has been no activity for 60
days.]

** Changed in: ifupdown (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1136301

Title:
  IFACE names in /etc/network/interfaces cannot contain a hyphen,
  otherwise up and down commands are skipped

Status in “ifupdown” package in Ubuntu:
  Expired

Bug description:
  Reproduced on Ubuntu 2.6.24-32-generic

  The sample configuration for /etc/network/interfaces for Hurricane
  Electric IPv6 tunnels uses an IFACE name of he-ipv6.

  I came across problems with command line commands that worked fine
  under sudo, but did not work when stored in /etc/network/interfaces.

  The problem looks strongly related to the inclusion of a hyphen "-" in
  the interface name.

  sudo ip link set mtu 1460 dev he-ipv6

  worked fine.

  A config line in /etc/network/interfaces like

  up ip link set mtu 1460 dev he-ipv6

  did not work, and the MTU remaind at 1480 at the next reboot.

  Whereas:

  up ip link set mtu 1460 dev $IFACE

  did work fine, and the MTU was reduced to 1460, as intended.

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