Dear Sir:

I try to create an internal network by:

$ openstack network create --internal int-net-1

When you show the network in detail, it is show “router:external=Internal”.

But still hook up to the provider’s network. It will auto assign the provider network & assign a VLAN.

$ openstack network show int-net-1

+---------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------+

| Field                     | Value                                                                                                                                                            |

+---------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------+

| admin_state_up            | UP                                                                                                                                                               |

| availability_zone_hints   |                                                                                                                                                                  |

| availability_zones        | nova                                                                                                                                                             |

| created_at                | 2020-11-24T09:41:07Z                                                                                                                                             |

| description               |                                                                                                                                                                  |

| dns_domain                | None                                                                                                                                                             |

| id                        | d45127af-c4a4-4019-a52f-a2519cae3cfd                                                                                                                             |

| ipv4_address_scope        | None                                                                                                                                                             |

| ipv6_address_scope        | None                                                                                                                                                             |

| is_default                | None                                                                                                                                                             |

| is_vlan_transparent       | False                                                                                                                                                            |

| location                  | cloud='', project.domain_id=, project.domain_name='Default', project.id='ce28a5c66b154445bd44b12ef5cece17', project.name='admin', region_name='RegionOne', zone= |

| mtu                       | 1500                                                                                                                                                             |

| name                      | int-net-1                                                                                                                                                        |

| port_security_enabled     | True                                                                                                                                                             |

| project_id                | ce28a5c66b154445bd44b12ef5cece17                                                                                                                                 |

| provider:network_type     | vlan                                                                                                                                                             |

| provider:physical_network | physnet0                                                                                                                                                         |

| provider:segmentation_id  | 402                                                                                                                                                              |

| qos_policy_id             | None                                                                                                                                                             |

| revision_number           | 2                                                                                                                                                                |

| router:external           | Internal                                                                                                                                                         |

| segments                  | None                                                                                                                                                             |

| shared                    | False                                                                                                                                                            |

| status                    | ACTIVE                                                                                                                                                           |

| subnets                   | 1e4f326f-2fc3-4803-8cbe-fe3e99100e02                                                                                                                             |

| tags                      |                                                                                                                                                                  |

| updated_at                | 2020-11-24T09:44:53Z                                                                                                                                             |

+---------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------+

Any suggestion, please.

Regards,

C.H. Huang

Technical Service for Advantech Cloud-IoT