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[Jas <1532897@xxxxxxxxxxxxxxxxxx>]

Closing this bug out. There is a patch out which inadvertently solves
this: https://review.openstack.org/#/c/266319/

** Changed in: neutron
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1532897

Title:
  octal ip address disallowed during create but still works during
  update of setting router gw

Status in neutron:
  Invalid

Bug description:
  environment: all-in-one devstack

  description: we have disallowed the usage of leading "0" in ip v4
  addresses due to the confusion of them being interpreted as octal
  addresses in some instances. This was first reported:
  https://bugs.launchpad.net/neutron/+bug/1524220 and then it was
  patched  https://review.openstack.org/255217 . I am able to bypass the
  fix while updating gw router ip.

  ex:
  -VirtualBox:~/devstack$ neutron router-create test-routr
  Created a new router:
  +-------------------------+--------------------------------------+
  | Field                   | Value                                |
  +-------------------------+--------------------------------------+
  | admin_state_up          | True                                 |
  | availability_zone_hints |                                      |
  | availability_zones      |                                      |
  | distributed             | False                                |
  | external_gateway_info   |                                      |
  | ha                      | False                                |
  | id                      | 7b5a90b6-9db2-4a83-b249-e320cbc049e4 |
  | name                    | test-routr                           |
  | routes                  |                                      |
  | status                  | ACTIVE                               |
  | tenant_id               | 20042bf593564b21b5957f0977d746fc     |
  +-------------------------+--------------------------------------+
  -VirtualBox:~/devstack$ neutron router-gateway-set --fixed-ip subnet_id=2a146a9d-9834-4fa1-a313-64f2ad677a97,ip_address=172.24.4.014 test-routr public 
  Request Failed: internal server error while processing your request.  <---- ERROR HERE IS EXPECTED
  -VirtualBox:~/devstack$ neutron router-gateway-set --fixed-ip subnet_id=2a146a9d-9834-4fa1-a313-64f2ad677a97,ip_address=172.24.4.17 test-routr public 
  Set gateway for router test-routr 
  -VirtualBox:~/devstack$ neutron router-gateway-set --fixed-ip subnet_id=2a146a9d-9834-4fa1-a313-64f2ad677a97,ip_address=172.24.4.014 test-routr public 
  Set gateway for router test-routr <-- THIS IS THE SAME THING THAT I TRIED EARLIER AND IT FAILED BUT SINCE THERE WAS ALREADY AN IP AND I WAS SIMPLY UPDATING, IT WAS ABLE TO BYPASS VALIDATION.

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