[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$ openstack floating ip create public
+---------------------+--------------------------------------+
| Field               | Value                                |
+---------------------+--------------------------------------+
| created_at          | 2018-02-14T04:08:39Z                 |
| description         |                                      |
| fixed_ip_address    | None                                 |
| floating_ip_address | 10.0.0.102                           |
| floating_network_id | 8e30768b-a78c-4edf-a754-9ca225accbb5 |
| headers             |                                      |
| id                  | 4615746c-ea7f-4e9c-9529-8fb556a065e7 |
| port_id             | None                                 |
| project_id          | bd96d2955a7b439fbad9a4aa05125506     |
| project_id          | bd96d2955a7b439fbad9a4aa05125506     |
| revision_number     | 1                                    |
| router_id           | None                                 |
| status              | DOWN                                 |
| updated_at          | 2018-02-14T04:08:39Z                 |
+---------------------+--------------------------------------+
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$ openstack floating ip list
+--------------------------------------+---------------------+------------------+------+
| ID                                   | Floating IP Address | Fixed IP Address | Port |
+--------------------------------------+---------------------+------------------+------+
| 4615746c-ea7f-4e9c-9529-8fb556a065e7 | 10.0.0.102          | None             | None |
+--------------------------------------+---------------------+------------------+------+
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$ openstack server add floating ip test-instance 10.0.0.102
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$ openstack server show test-instance -f json -c addresses
{
  "addresses": "default=172.16.1.12, 10.0.0.102"
}[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$ ping -c3 10.0.0.102
ping: socket: Operation not permitted
[heat-admin@overcloud-controller-0 ~]$ exit
logout
Connection to 192.0.2.12 closed.
[stack@undercloud ~]$
[stack@undercloud ~]$
[stack@undercloud ~]$
[stack@undercloud ~]$
[stack@undercloud ~]$ ping -c3 10.0.0.102
connect: Network is unreachable
[stack@undercloud ~]$
[stack@undercloud ~]$ ping -c3 10.0.0.102
connect: Network is unreachable
[stack@undercloud ~]$ ssh heat-admin@192.0.2.12
Last login: Wed Feb 14 03:57:55 2018 from 192.0.2.1
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$ openstack server show test-instance -f json -c addresses
Missing value auth-url required for auth plugin password
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$ source ~/overcloudrc
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$ openstack server show test-instance -f json -c addresses
{
  "addresses": "default=172.16.1.12, 10.0.0.102"
}[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$
[heat-admin@overcloud-controller-0 ~]$ exit
logout
Connection to 192.0.2.12 closed.
[stack@undercloud ~]$
[stack@undercloud ~]$
[stack@undercloud ~]$ source ~/overcloudrc
[stack@undercloud ~]$
[stack@undercloud ~]$
[stack@undercloud ~]$ ping -c3 10.0.0.102
connect: Network is unreachable
[stack@undercloud ~]$