Hello, I did another test and yes, The first configuration does not work openstack network create vps_network --share --enable --external --project CLOUD.VPS --provider-network-type flat --provider-physical-network physnet1 openstack subnet create vps_subnet --network vps_network --project CLOUD.VPS --subnet-range 192.168.250.0/24 --gateway 192.168.250.1 --ip-version 4 --allocation-pool start=192.168.250.210,end=192.168.250.220 --no-dhcp But it works fine openstack network create \ --no-share \ --enable \ --project admin \ --description "WAN - Wyjście na świat" \ --external \ --provider-network-type flat \ --provider-physical-network physnet1 \ METRO openstack subnet create \ --project admin \ --subnet-range 192.168.250.0/24 \ --no-dhcp \ --gateway 192.168.250.1 \ --ip-version 4 \ --network METRO \ --allocation-pool start=192.168.250.200,end=192.168.250.210 \ PublicIP openstack network create \ --no-share \ --enable \ --project CLOUD.VPS \ --description "Wewnętrzna sieć OpenStack" \ --internal \ vNet0 openstack subnet create \ --project CLOUD.VPS \ --subnet-range 10.200.0.0/16 \ --dhcp \ --gateway 10.200.255.254 \ --ip-version 4 \ --network vNet0 \ --allocation-pool start=10.200.0.1,end=10.200.255.253 \ PrivateIP openstack router create \ --enable \ --ha \ --project CLOUD.VPS \ --external-gateway METRO \ --enable-snat \ vRouter0 # Create vRouter openstack router add subnet vRouter0 PrivateIP # Create floating addresses for i in {210..220} do openstack floating ip create --project CLOUD.VPS --floating-ip-address 192.168.250.$i METRO; done Do you have any ideas or does anyone have any ideas what else might be wrong?