Return unintelligible message when create ipv6 subnet

[zhaobo]

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.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/249205

[OpenStack Infra (hudson-openstack)]

Change abandoned by Armando Migliaccio (<email address hidden>) on branch: master
Review: https://review.openstack.org/249205
Reason: This review is > 4 weeks without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.

[Launchpad Janitor (janitor)]

[Expired for neutron because there has been no activity for 60 days.]