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[Oliver Grawert <ogra@xxxxxxxxxx>]

dhclient.conf has "timeout 300" set by default in ubuntu so
theoretically according to the manpge it should exit after 5min. this
looks like a bug in dhclient itself

** Also affects: isc-dhcp (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1503680

Title:
  dhclient for eth0 does never exit and retries dhcp foerever

Status in Snappy:
  New
Status in isc-dhcp package in Ubuntu:
  New

Bug description:
  When booting snappy without eth0 connected, dhclient runs forever
  trying to retrieve DHCP every 5 minutes.

  dhclient is run with the -1 parameter which is supposed to try only
  once and exit after trying.

         -1     Try  to  get  a  lease  once.   On failure exit with code 2.  In
                DHCPv6 this sets the maximum duration of the initial exchange to
                timeout (from dhclient.conf(5) with a default of sixty seconds).

  Though dhclient keeps running / does not exit.

  If dhclient is changed to exit after failure, it must be insured that
  it will be restarted when the network interface gets a physical link.

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