Create routers

Create a router:

$ neutron router-create router1

Created a new router:
+-----------------------+--------------------------------------+
| Field                 | Value                                |
+-----------------------+--------------------------------------+
| admin_state_up        | True                                 |
| external_gateway_info |                                      |
| id                    | 6e1f11ed-014b-4c16-8664-f4f615a3137a |
| name                  | router1                              |
| status                | ACTIVE                               |
| tenant_id             | 7b5970fbe7724bf9b74c245e66b92abf     |
+-----------------------+--------------------------------------+

Take note of the unique router identifier returned, this will be required in subsequent steps.

Link the router to the external provider network:

$ neutron router-gateway-set ROUTER NETWORK

Replace ROUTER with the unique identifier of the router, replace NETWORK with the unique identifier of the external provider network.

Link the router to the subnet:

$ neutron router-interface-add ROUTER SUBNET

Replace ROUTER with the unique identifier of the router, replace SUBNET with the unique identifier of the subnet.