openstack network create –provider-physical-network provider_ipv4 –provider-network-type flat –external 192_168_64_0_24 openstack subnet create –subnet-range 192.168.64.0/24 –gateway 192.168.64.1 –network 192_168_64_0_24 –no-dhcp 192_168_64_0_24-v4
openstack network create –provider-physical-network provider_ipv6 –provider-network-type flat –external 2001_da8_abff_fff_64 openstack subnet create –ip-version 6 –subnet-range 2001:da8:abff:fff::/64 –gateway 2001:da8:abff:fff::1 –network 2001_da8_abff_fff_64 –no-dhcp 2001_da8_abff_fff_64-v6
openstack network create 172_16_1_0_24 openstack subnet create –subnet-range 172.16.1.0/24 –gateway 172.16.1.1 –network 172_16_1_0_24 –no-dhcp 172_16_1_0_24-v4
openstack network create 172_16_0_0_24 openstack subnet create –subnet-range 172.16.0.0/24 –gateway 172.16.0.1 –network 172_16_0_0_24 –no-dhcp 172_16_0_0_24-v4