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[zhaobo <zhaobo6@xxxxxxxxxx>]

Public bug reported:

version: master

I just create a network , and then create a ipv6 subnet like "neutron subnet-create ${NETWORK_NAME}--ip-version 6 ::/126".
But the server returned the message like:
xxx@xxx:~$ neutron subnet-create ll ::/126 --ip-version 6
Created a new subnet:
+-------------------+--------------------------------------+
| Field             | Value                                |
+-------------------+--------------------------------------+
| allocation_pools  | {"start": "::2", "end": "::3"}       |
| cidr              | ::/126                               |
| dns_nameservers   |                                      |
| enable_dhcp       | True                                 |
| gateway_ip        | ::1                                  |
| host_routes       |                                      |
| id                | 09470e62-8d09-445b-8a6c-6677da23fa17 |
| ip_version        | 6                                    |
| ipv6_address_mode |                                      |
| ipv6_ra_mode      |                                      |
| name              |                                      |
| network_id        | 3985d44b-1054-4697-b372-20f06f6fdda7 |
| subnetpool_id     |                                      |
| tenant_id         | a089ad6018554142a57a9dd705f53c5b     |
+-------------------+--------------------------------------+

The gateway ip is the loopback address for ipv6. And the
allocation_pools may make the user confused just like 0.0.0.2 / 0.0.0.3
based on ipv4 addresses.

This behavior is so strange, but I think this should be an error.So I
need someone to confirm it.

** Affects: neutron
     Importance: Undecided
     Assignee: zhaobo (zhaobo6)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => zhaobo (zhaobo6)

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https://bugs.launchpad.net/bugs/1481554

Title:
  Return unintelligible message when create ipv6 subnet

Status in neutron:
  New

Bug description:
  version: master

  I just create a network , and then create a ipv6 subnet like "neutron subnet-create ${NETWORK_NAME}--ip-version 6 ::/126".
  But the server returned the message like:
  xxx@xxx:~$ neutron subnet-create ll ::/126 --ip-version 6
  Created a new subnet:
  +-------------------+--------------------------------------+
  | Field             | Value                                |
  +-------------------+--------------------------------------+
  | allocation_pools  | {"start": "::2", "end": "::3"}       |
  | cidr              | ::/126                               |
  | dns_nameservers   |                                      |
  | enable_dhcp       | True                                 |
  | gateway_ip        | ::1                                  |
  | host_routes       |                                      |
  | id                | 09470e62-8d09-445b-8a6c-6677da23fa17 |
  | ip_version        | 6                                    |
  | ipv6_address_mode |                                      |
  | ipv6_ra_mode      |                                      |
  | name              |                                      |
  | network_id        | 3985d44b-1054-4697-b372-20f06f6fdda7 |
  | subnetpool_id     |                                      |
  | tenant_id         | a089ad6018554142a57a9dd705f53c5b     |
  +-------------------+--------------------------------------+

  The gateway ip is the loopback address for ipv6. And the
  allocation_pools may make the user confused just like 0.0.0.2 /
  0.0.0.3 based on ipv4 addresses.

  This behavior is so strange, but I think this should be an error.So I
  need someone to confirm it.

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