# create a net and a subnet
i=1;
while [ $i -lt 51 ]; do
neutron net-create scalenet$i --shared;
j=0;
while [ $j -lt 4 ]; do
neutron subnet-create scalenet$i $i.$j.0.0/16;
j=$[$j+1];
done;
i=$[$i+1];
done
neutron --os-username admin net-list
openstack domain list admin_domain
openstack role assignment list --user admin --project scaleadmin10 --names
i=1;while [ $i -lt 201 ]; do openstack user create --domain admin_domain --password password$i scaleuser$i; i=$[$i+1]; done
i=1;while [ $i -lt 201 ]; do openstack role add --project scaleadmin$i --user admin admin; i=$[$i+1];echo "Added admin:admin user:role to project:scaleadmin$i"; done
openstack network create --provider-network-type flat --provider-physical-network datacentre public
openstack subnet create --network public --subnet-range 192.0.2.0/24 --allocation-pool start=192.0.2.50,end=192.0.2.240 --no-dhcp public-sub
glance image-create --name "ubuntu" --disk-format iso --container-format bare --file ubuntu-16.04.3-desktop-amd64.iso
nova flavor-create m1.medium auto 2048 20 4 --swap 2048 --is-public True
[heat-admin@overcloud-controller-0 ~]$ openstack network show public
+---------------------------+--------------------------------------+
| Field | Value |
+---------------------------+--------------------------------------+
| admin_state_up | UP |
| availability_zone_hints | |
| availability_zones | nova |
| created_at | 2017-11-02T11:48:11Z |
| description | |
| id | 797dd76d-aca0-4a4e-acb4-5c5b5efbe505 |
| ipv4_address_scope | None |
| ipv6_address_scope | None |
| is_default | False |
| mtu | 1496 |
| name | public |
| port_security_enabled | True |
| project_id | a5778a40001b49e3a6e21c11ebaaaaf8 |
| project_id | a5778a40001b49e3a6e21c11ebaaaaf8 |
| provider:network_type | flat |
| provider:physical_network | datacentre |
| provider:segmentation_id | None |
| qos_policy_id | None |
| revision_number | 6 |
| router:external | External |
| shared | False |
| status | ACTIVE |
| subnets | 2893960a-74a3-4582-8a50-dbd3a5795706 |
| tags | [] |
| updated_at | 2017-11-02T11:53:08Z |
+---------------------------+--------------------------------------+
[heat-admin@overcloud-controller-0 ~]$ openstack network show scalenet10
+---------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value |
+---------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| admin_state_up | UP |
| availability_zone_hints | |
| availability_zones | nova |
| created_at | 2017-10-19T05:10:05Z |
| description | |
| id | aee32462-f555-4392-891f-7a4600946759 |
| ipv4_address_scope | None |
| ipv6_address_scope | None |
| mtu | 1446 |
| name | scalenet10 |
| port_security_enabled | True |
| project_id | a5778a40001b49e3a6e21c11ebaaaaf8 |
| project_id | a5778a40001b49e3a6e21c11ebaaaaf8 |
| provider:network_type | vxlan |
| provider:physical_network | None |
| provider:segmentation_id | 62 |
| qos_policy_id | None |
| revision_number | 11 |
| router:external | Internal |
| shared | True |
| status | ACTIVE |
| subnets | 3413e300-3b65-44ce-b351-8794bad587dd, 52fb1ef6-e47e-449c-a556-a371226eb830, 8e7dec7b-078a-4fa3-b98d-77449babd85d, d3ba3c63-f3d0-41f5-9caf-5a47cd39624c |
| tags | [] |
| updated_at | 2017-10-19T05:10:11Z |
+---------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
# create router r1
openstack router create r1
openstack router set --external-gateway public r1
neutron router-gateway-set r1 public
for all subnets in that net:
add interface from r1 to that subnet
openstack network list | grep scalenet10
| aee32462-f555-4392-891f-7a4600946759 | scalenet10 | 3413e300-3b65-44ce-b351-8794bad587dd, 52fb1ef6-e47e-449c-a556-a371226eb830, 8e7dec7b-078a-4fa3-b98d-77449babd85d, d3ba3c63-f3d0-41f5-9caf-5a47cd39624c |
make sure the network is owned by the same tenant as the vm.
in our case, we formed
=> network id is aee32462-f555-4392-891f-7a4600946759
for scalenet10
list ip of vm from host
..if you have
arp
command:virbr0
is our guy, with HWaddress included. virbr0 is virtual bridge NAT'ed to VM from host.OR
..if you have
arp
command andvirsh
tool (comes with 'virtual machine manager' and libvirt libraryt )..if you have nmap installed:
OR
find mac address of interface
others
https://unix.stackexchange.com/questions/255484/how-can-i-bridge-two-interfaces-with-ip-iproute2
sudo ip link add name virbr0 type bridge sudo ip netns list