⁠8.10.5. Associating the Floating IP Addresses

This procedure describes the procedure for associating floating point IP addresses.
⁠

Procedure 8.12. Associating the Floating IP Address using the Command Line Interface

  1. Retreive the pool id for the VM.
    After a VM is deployed a floating IP address can be associated to the VM. A VM that is created will be allocated an OpenStack Networking port ($PORT_ID). 
    # nova list
+--------------------------------------+--------+--------+---------------+
|                  ID                  |  Name  | Status |    Networks   |
+--------------------------------------+--------+--------+---------------+
|              DEVICE_ID               | testvm | ACTIVE |    net1=IP    |
+--------------------------------------+--------+--------+---------------+
    # neutron port-list -- --device_id DEVICE_ID
+----------+--------+------------------+-----------------------------------------------+
| ID | Name | MAC_Address      |                        Networks                       |
+--------------------------------------+--------+--------+-----------------------------+
| ID |      | fa:16:3e:b4:d6:6c| {"subnet_id": "SUBNET_ID", "ip_address": "IP_ADDRESS"}|
+--------------------------------------+--------+--------+-----------------------------+
  2. Allocate a floating IP 
    # neutron floatingip-create ext_net
+---------------------+--------------------------------------+
| Field               | Value                                |
+---------------------+--------------------------------------+
| fixed_ip_address    |                                      |
| floating_ip_address | 7.7.7.131                            |
| floating_network_id | 8858732b-0400-41f6-8e5c-25590e67ffeb |
| id                  | 40952c83-2541-4d0c-b58e-812c835079a5 |
| port_id             |                                      |
| router_id           |                                      |
| tenant_id           | e40fa60181524f9f9ee7aa1038748f08     |
+---------------------+--------------------------------------+
  3. Associate a floating IP to a VM 
    # neutron floatingip-associate FLOATING_ID PORT_ID
  4. Show the floating IP 
    # neutron floatingip-show FLOATING_ID
+---------------------+--------------------------------------+
| Field               | Value                                |
+---------------------+--------------------------------------+
| fixed_ip_address    | 10.5.5.3                             |
| floating_ip_address | 7.7.7.131                            |
| floating_network_id | 8858732b-0400-41f6-8e5c-25590e67ffeb |
| id                  | 40952c83-2541-4d0c-b58e-812c835079a5 |
| port_id             | 9aa47099-b87b-488c-8c1d-32f993626a30 |
| router_id           | 685f64e7-a020-4fdf-a8ad-e41194ae124b |
| tenant_id           | e40fa60181524f9f9ee7aa1038748f08     |
+---------------------+--------------------------------------+
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