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[Launchpad Bug Tracker <1365756@xxxxxxxxxxxxxxxxxx>]

[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/1365756

Title:
  DHCPv6 stateful doesn't assign IP to ports created before it

Status in neutron:
  Expired

Bug description:
  When we create port in network without subnets(*) and then create IPv4
  subnet with DHCP enabled, the port gets IP automatically. Unlike so
  with IPv6 subnets. When we create subnet with DHCPv6 stateful the port
  doesn't get anything from DHCP server automatically, only after
  explicit port-update. It's inconsistence.

  With IPv4:
  $ neutron net-create netto
  $ neutron port-create netto
  $ neutron subnet-create  --ip-version=4 netto "192.168.111.0/24"
  $ neutron port-list | grep 9856ecc4-9fc0-495c-81d1-686502a3ec83 # Port ID

  | cb1f0dad-d393-49fc-a3ed-098a7e1d3692 |      | fa:16:3e:79:04:d6 |
  {"subnet_id": "9856ecc4-9fc0-495c-81d1-686502a3ec83", "ip_address":
  "192.168.111.2"} |

  With IPv6:

  $ neutron net-create netto6
  Created a new network:
  +---------------------------+--------------------------------------+
  | Field                     | Value                                |
  +---------------------------+--------------------------------------+
  | admin_state_up            | True                                 |
  | id                        | b3858d5e-4665-422a-8511-6dd79f54437f |
  | name                      | netto6                               |
  | provider:network_type     | vxlan                                |
  | provider:physical_network |                                      |
  | provider:segmentation_id  | 1005                                 |
  | router:external           | False                                |
  | shared                    | False                                |
  | status                    | ACTIVE                               |
  | subnets                   |                                      |
  | tenant_id                 | b1be3cf4e956459cad6b3f6541bbbad8     |
  +---------------------------+--------------------------------------+

  $ neutron port-create netto6
  Created a new port:
  +-----------------------+--------------------------------------+
  | Field                 | Value                                |
  +-----------------------+--------------------------------------+
  | admin_state_up        | True                                 |
  | allowed_address_pairs |                                      |
  | binding:host_id       |                                      |
  | binding:profile       | {}                                   |
  | binding:vif_details   | {}                                   |
  | binding:vif_type      | unbound                              |
  | binding:vnic_type     | normal                               |
  | device_id             |                                      |
  | device_owner          |                                      |
  | fixed_ips             |                                      |
  | id                    | bd12d32c-66fc-4947-b266-c4d565454174 |
  | mac_address           | fa:16:3e:a2:d8:14                    |
  | name                  |                                      |
  | network_id            | b3858d5e-4665-422a-8511-6dd79f54437f |
  | security_groups       | b2fdab5e-1aa1-49bd-9717-72b41b8d109e |
  | status                | DOWN                                 |
  | tenant_id             | b1be3cf4e956459cad6b3f6541bbbad8     |
  +-----------------------+--------------------------------------+

  $ neutron subnet-create --ipv6-ra-mode=dhcpv6-stateful --ipv6-address-mode=dhcpv6-stateful --ip-version=6 netto6 "2002::/64"
  Created a new subnet:
  +-------------------+----------------------------------------------------------+
  | Field             | Value                                                    |
  +-------------------+----------------------------------------------------------+
  | allocation_pools  | {"start": "2002::2", "end": "2002::ffff:ffff:ffff:fffe"} |
  | cidr              | 2002::/64                                                |
  | dns_nameservers   |                                                          |
  | enable_dhcp       | True                                                     |
  | gateway_ip        | 2002::1                                                  |
  | host_routes       |                                                          |
  | id                | 66e3e3c6-d561-494a-aec7-4fee272cf71d                     |
  | ip_version        | 6                                                        |
  | ipv6_address_mode | dhcpv6-stateful                                          |
  | ipv6_ra_mode      | dhcpv6-stateful                                          |
  | name              |                                                          |
  | network_id        | b3858d5e-4665-422a-8511-6dd79f54437f                     |
  | tenant_id         | b1be3cf4e956459cad6b3f6541bbbad8                         |
  +-------------------+----------------------------------------------------------+

  $ neutron port-list | grep bd12d32c-66fc-4947-b266-c4d565454174 # Port
  ID

  | bd12d32c-66fc-4947-b266-c4d565454174 |      | fa:16:3e:a2:d8:14 |

  The same thing also with :
  1) --ipv6-ra-mode=dhcpv6-stateless --ipv6-address-mode=dhcpv6-stateless
  2)  --ipv6-address-mode=dhcpv6-stateful only
  3) --ipv6-address-mode=dhcpv6-stateless only

  -------
  (*) why to do it? is it real user story?

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