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[Bug 1486836] Re: floating ip can‘t work because instance mac address conflict

 

[Expired for neutron because there has been no activity for 60 days.]

** Changed in: neutron
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1486836

Title:
  floating ip can‘t work because instance mac address conflict

Status in neutron:
  Expired

Bug description:
  Problem Description
  =============================
  neutron network mode is:
  linux bridge + vxlan + l2pop

  1.  Create an instance,  fixed_ip is allocating by dhcp agent.
  2.  Associate a floating_ip to the instance,  then ssh or ping floating_ip.
  3.  Delete the instance, floating_ip is disassociated.
  4.  Create another instance, specify the same fixed_ip in step 1 which dhcp  agent auto allocated.
  5.  Associate the same floating_ip in step 2 , then ssh or ping floating_ip will failed.

  The reason for this issue is the arp entry in router namespace is old
  instance mac address.

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References