[Bug 1017166] Re: Unplugged or deactivated ethernet interfaces may not be handled properly

[Stéphane Graber]

Fine, converted to a wishlist entry (not planning on working on that
though).

I believe we can update the release notes post-release, yes and we probably should for that case.
It's also worth noting that dhclient was the only dhcp client doing the whole backgrounding thing in ifupdown, all the other ones are behaving just like dhclient is since 12.04.

** Changed in: ifupdown (Ubuntu)
       Status: Won't Fix => Triaged

** Changed in: ifupdown (Ubuntu)
   Importance: High => Wishlist

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https://bugs.launchpad.net/bugs/1017166

Title:
  Unplugged or deactivated ethernet interfaces may not be handled
  properly

Status in “ifupdown” package in Ubuntu:
  Triaged

Bug description:
  If i have a server which has a management-only interface which is
  usually down, in versions of Ubuntu before 11.10, I could configure
  that ethernet interface in /etc/network/interfaces, and dhclient would
  try forever to get an address.

  I believe this is a regression that was introduced in the fix for bug
  #838968 , where the '-1' parameter was introduced to dhclient3's
  invocation in ifupdown.

  While I do think we should report errors, we should also retry this
  *forever* since it may be the only way a system can be reached *to see
  that error*.

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