RHOSP8: Creating External Network

Specs:

• Overcloud External IP: 192.168.122.0/24
• Overcloud Internal IP: 10.0.0.0/24

1. Create internal-net.

$ neutron net-create intnet
$ neutron subnet-create --enable-dhcp --ip-version 4 intnet 10.0.0.0/24

2 Create external-net.

$ neutron net-create --router:external=true extnet
$ neutron subnet-create --disable-dhcp  --name pubsubnet --allocation-pool start=192.168.122.100,end=192.168.122.150 pubnet 192.168.122.0/24

3. Create router.

$ neutron router-create router1

4. Assign router a gateway.

$ neutron router-gateway-set router1 pubnet

5. Add interface for extnet and intnet.

$ neutron router-interface-add router1 <intnet subnet UUID>

6. Create floating IP pool.

$ openstack ip floating create pubnet

7. Add IP to server.

$ openstack ip floating add <IP_FROM_ABOVE - `openstack ip floating list` > <VM_NAME>
$ openstack ip floating add 192.168.122.101 test3