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[sunzuohua <zuohuasun@xxxxxxxxx>]

Public bug reported:

>From the spec[1], we will get one IP address from one of the v6 subnets.

=================================

Port-create operations without an explicit list of fixed IPs: There will
be no change from the current design. When a port-create operation does
not include an explicit list of fixed IPs, the following subnets on the
associated network will be associated with the port:

One subnet from all IPv4 subnets
One subnet from all IPv6 DHCPv6-stateful subnets
All SLAAC-enabled subnets
===================================

But actually we get multiple IPs from all of the v6 subnets.
[1]https://specs.openstack.org/openstack/neutron-specs/specs/kilo/multiple-ipv6-prefixes.html

** Affects: neutron
     Importance: Undecided
     Assignee: sunzuohua (zuohuasun)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => sunzuohua (zuohuasun)

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https://bugs.launchpad.net/bugs/1790255

Title:
  Multiple IPs from ipv6 subnets on the associated network are allocated
  for port creation

Status in neutron:
  New

Bug description:
  From the spec[1], we will get one IP address from one of the v6
  subnets.

  =================================

  Port-create operations without an explicit list of fixed IPs: There
  will be no change from the current design. When a port-create
  operation does not include an explicit list of fixed IPs, the
  following subnets on the associated network will be associated with
  the port:

  One subnet from all IPv4 subnets
  One subnet from all IPv6 DHCPv6-stateful subnets
  All SLAAC-enabled subnets
  ===================================

  But actually we get multiple IPs from all of the v6 subnets.
  [1]https://specs.openstack.org/openstack/neutron-specs/specs/kilo/multiple-ipv6-prefixes.html

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