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

[Scott Moser]

I updated the description with 'Related Bugs', specifically for bug
974284, which is where Stéphane remembers having the conversation.

** Description changed:

  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*.
+ 
+ Related bugs:
+  * bug 838968: static-network-up event does not wait for interfaces to have an address
+  * bug 974284: invoking dhclient3 with -1 causes issue if no dhcp server available

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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*.

  Related bugs:
   * bug 838968: static-network-up event does not wait for interfaces to have an address
   * bug 974284: invoking dhclient3 with -1 causes issue if no dhcp server available

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