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[OpenStack Infra <1856726@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.opendev.org/699465
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=0b3cff33c1904b82146701b521749cff01f44e9a
Submitter: Zuul
Branch:    master

commit 0b3cff33c1904b82146701b521749cff01f44e9a
Author: Rodolfo Alonso Hernandez <ralonsoh@xxxxxxxxxx>
Date:   Tue Dec 17 16:50:36 2019 +0000

    Subnet gateway should be a valid IP
    
    When a subnet is created and allocated, the gateway IP is created
    based on the subnet CIDR. In case of IPv6 prefix delegation, this
    CIDR is a temporary one. In this case the gateway IP cannot be
    assigned yet and the value stored in the DB should be "None".
    
    IpamBackendMixin._gateway_ip_str must read properly the IP version
    stored in the "subnet" variable, under the key "ip_version"
    instead of "version".
    
    Closes-Bug: #1856726
    Closes-Bug: #1856675
    
    Change-Id: I9313c880cc458f08dc3a1b0ff13187b764ba7042


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1856726

Title:
  IpamBackendMixin._gateway_ip_str is not reading correctly the subnet
  IP version

Status in neutron:
  Fix Released

Bug description:
  The "subnet" parameter passed to this function comes from the API
  request to the plugin to create a subnet. The "subnet" parameter is a
  dictionary based on the DB model. In this DB model, the IP version
  parameter is called "ip_version", instead of "version" [1].

  [1]
  https://github.com/openstack/neutron/blob/master/neutron/db/ipam_backend_mixin.py#L59

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