In our architecture, floating IPs are in VLAN 101.
neutron net-create floating-192-168-101 \ --shared --router:external true --provider:network_type vlan \ --provider:physical_network vlan --provider:segmentation_id 101
+---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | True | | id | 01c41b9a-3241-4236-9e52-77e0967d4b53 | | mtu | 0 | | name | floating-192-168-101 | | port_security_enabled | True | | provider:network_type | vlan | | provider:physical_network | vlan | | provider:segmentation_id | 101 | | router:external | True | | shared | True | | status | ACTIVE | | subnets | | | tenant_id | 15318113a30947fcb5dfde01ef04e97b | +---------------------------+--------------------------------------+
note down the ID, and use the ID in the next command
neutron subnet-create --allocation-pool start=192.168.101.5,end=192.168.101.250 \ --ip-version 4 --gateway 192.168.101.1 --disable-dhcp \ --name floating-192-168-101 --dns-nameserver 8.8.8.8 \ 01c41b9a-3241-4236-9e52-77e0967d4b53 192.168.101.0/24
Created a new subnet:
+-------------------+------------------------------------------------------+
| Field | Value |
+-------------------+------------------------------------------------------+
| allocation_pools | {"start": "192.168.101.5", "end": "192.168.101.250"} |
| cidr | 192.168.101.0/24 |
| dns_nameservers | 8.8.8.8 |
| enable_dhcp | False |
| gateway_ip | 192.168.101.1 |
| host_routes | |
| id | 8433e4c6-7f96-4de4-9f1c-746fe835da64 |
| ip_version | 4 |
| ipv6_address_mode | |
| ipv6_ra_mode | |
| name | floating-192-168-101 |
| network_id | 01c41b9a-3241-4236-9e52-77e0967d4b53 |
| subnetpool_id | |
| tenant_id | 15318113a30947fcb5dfde01ef04e97b |
+-------------------+------------------------------------------------------+
neutron net-external-list
+--------------------------------------+----------------------+-------------------------------------------------------+ | id | name | subnets | +--------------------------------------+----------------------+-------------------------------------------------------+ | 01c41b9a-3241-4236-9e52-77e0967d4b53 | floating-192-168-101 | 8433e4c6-7f96-4de4-9f1c-746fe835da64 192.168.101.0/24 | +--------------------------------------+----------------------+-------------------------------------------------------+
note down the id.
Now you need to create a router to connect to this network.
neutron router-create router01
Created a new router: +-----------------------+--------------------------------------+ | Field | Value | +-----------------------+--------------------------------------+ | admin_state_up | True | | distributed | False | | external_gateway_info | | | ha | True | | id | 0a070515-ccd3-4149-9c2c-67ed7180d27f | | name | router01 | | routes | | | status | ACTIVE | | tenant_id | 15318113a30947fcb5dfde01ef04e97b | +-----------------------+--------------------------------------+
neutron router-gateway-set 0a070515-ccd3-4149-9c2c-67ed7180d27f 01c41b9a-3241-4236-9e52-77e0967d4b53
neutron router-list
+--------------------------------------+----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------+------+
| id | name | external_gateway_info | distributed | ha |
+--------------------------------------+----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------+------+
| 0a070515-ccd3-4149-9c2c-67ed7180d27f | router01 | {"network_id": "01c41b9a-3241-4236-9e52-77e0967d4b53", "enable_snat": true, "external_fixed_ips": [{"subnet_id": "8433e4c6-7f96-4de4-9f1c-746fe835da64", "ip_address": "192.168.101.5"}]} | False | True |
+--------------------------------------+----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------+------+
