From d9ccf7d771afc6ad886182cdd7fbc956632e4935 Mon Sep 17 00:00:00 2001 From: Bin Hu Date: Wed, 19 Aug 2015 18:07:01 -0700 Subject: JIRA: IPVSIX-17 Change-Id: I5ba22e211b75407f93463b6184335306ae90e613 Signed-off-by: Bin Hu --- vrouter/setup_ipv6_vrouter.txt | 122 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 122 insertions(+) create mode 100644 vrouter/setup_ipv6_vrouter.txt (limited to 'vrouter/setup_ipv6_vrouter.txt') diff --git a/vrouter/setup_ipv6_vrouter.txt b/vrouter/setup_ipv6_vrouter.txt new file mode 100644 index 0000000..06d2de8 --- /dev/null +++ b/vrouter/setup_ipv6_vrouter.txt @@ -0,0 +1,122 @@ +====================================== +Set up an IPv6 vRouter on a Service VM +====================================== + +| Here you will find the steps involved in creating a ServiceVM that acts as an IPv6 vRouter. In this example, we will be using a CentOS7 image as vRouter (we should be able to use other OS as well) and devstack for OpenStack installation. We need to enable Port Security Extension as the extension_drivers in ML2 configuration file. + +| Following is a sample configuration of devstack local.conf file. + +| **# [[local|localrc]]** +| `DATA_DIR=$DEST/data` +| `SCREEN_LOGDIR=$DATA_DIR/logs` +| `LOGFILE=$SCREEN_LOGDIR/stack.sh.log` +| `ADMIN_PASSWORD=password` +| `MYSQL_PASSWORD=password` +| `RABBIT_PASSWORD=password` +| `SERVICE_PASSWORD=password` +| `SERVICE_TOKEN=token` +| `disable_service n-net tempest h-eng h-api h-api-cfn h-api-cw` +| `enable_service q-svc q-dhcp q-meta q-agt q-l3 n-novnc` +| **# [[post-config|/$Q_PLUGIN_CONF_FILE]]** +| **# [ml2]** +| `extension_drivers=port_security` + +| After successful installation of OpenStack with the above configuration, we shall create the necessary neutron networks/subnets/ports etc. +| `cd devstack` +| `./stack.sh` + +| # Source the tenant credentials. +| `source openrc admin demo` +| # Create a Neutron router which provides external connectivity. +| `neutron router-create router1` +| # Create an external network using the appropriate values based on the data-center physical network setup. +| `neutron net-create --provider:network_type --provider:physical_network --provider:segmentation_id --router:external ext-net` +| # Configure ipv6_gateway= in the Neutron L3 agent configuration file. +| # Associate the ext-net to the neutron router. +| `neutron router-gateway-set router1 ext-net` +| # Create an IPv6 internal network. +| `neutron net-create ipv6-internal-network` +| # Create an IPv6 subnet in the internal network. +| `neutron subnet-create --name ipv6-int-subnet --ip-version 6 --ipv6-ra-mode slaac --ipv6-address-mode slaac ipv6-internal-network 2001:db8:0:1::/64` +| # Associate the internal subnet to a neutron router. +| `neutron router-interface-add router1 ipv6-int-subnet` + +| Now we shall create an isolated network which is the internal network of vRouter. +| # Create an isolated router for the tenant internal network. +| `neutron router-create router2` +| # Create a Neutron Internal Network. +| `neutron net-create tenant-internal-network` +| # Create an IPv4 subnet in the internal network. +| `neutron subnet-create --name ipv4-int-subnet tenant-internal-network 10.0.0.1/24` +| # Associate the router2 to IPv4 subnet created above. +| `neutron router-interface-add ` + +| Mapping this configuration to `PoC-1`_. + +.. _`PoC-1`: /ipv6/images/ipv6-poc-1.png + +- `ipv6-internal-network and ext-net is the Red colored network.` +- `tenant-internal-network is the Green colored network.` + +| Lets create two neutron ports one from ext-net and the other from tenant-internal-network for the vRouter VM +| `neutron port-create ipv6-internal-network --port-security-enabled=False --name enp0s3-port` +| `neutron port-create tenant-internal-network --port-security-enabled=False --name enp0s8-port` + +| Download the Centos7 image which is used as vRouter. +| `glance image-create --name 'Centos7' --disk-format qcow2 --container-format bare --is-public true --copy-from http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud.qcow2` + +| Create a keypair. +| `nova keypair-add vRouterKey > ~/vRouterKey` + +| Spawn the Centos7 image with two nics (i.e., enp0s3-port and enp0s8-port) +| `nova boot --image –flavor m1.small --nic port-id=$(neutron port-show -f value -F id enp0s3-port) –nic --nic port-id=$(neutron port-show -f value -F id enp0s8-port) --key-name vRouterKey CentOSvRouter` + +| Verify that CentOSvRouter boots up successfully and keypair is injected. +| `nova list` +| `nova console-log CentOSvRouter` + +| After the image boots up successfully, from the router1 namespace, ssh to vRouter using the keypair. +| `sudo ip netns` +| `sudo ip netns exec bash` +| `ssh -i ~/vRouterKey centos@` + +| As a one time job, before we can create the snapshot, execute the steps (i.e., SLAAC setup) mentioned at the following link. +| `https://wiki.opnfv.org/ipv6_opnfv_project/vm_as_router` + +| In order to verify that the setup is working, lets create some cirros VMs on the "tenant-internal-network" (i.e., vRouter internal network). +| `nova boot --image --flavor m1.tiny --nic net-id= VM1` +| `nova boot --image --flavor m1.tiny --nic net-id= VM2` + +| Confirm that both the VMs have successfully booted up. +| `nova list` +| `nova console-log VM1` +| `nova console-log VM2` + +| Add the necessary security group ingress rules. +| `source openrc demo demo` +| # SSH access to the VMs +| `neutron security-group-rule-create --direction ingress --protocol tcp --port-range-min 22 --port-range-max 22 --remote-ip-prefix 10.0.0.0/24 default` +| # Permit IPv6 Router Advts from the vRouter internal interface to the VMs. +| `neutron security-group-rule-create --direction ingress --ethertype IPv6 --protocol icmpv6 --port-range-min 134 --remote-ip-prefix fe80::/64 default` + +| SSH to the cirros VMs to check the IPv6 forwarding use-case. +| `sudo ip netns` +| `sudo ip netns exec bash` +| `ssh cirros@` + +| Note: default password of cirros image would be "cubswin:)" + +| Verify that Cirros image has an IPv6 address assigned via SLAAC with a prefix of "2001:db8:0:2::/64" +| `ip address` +| # verify that default route points to the LLA of enp0s8 interface of vRouter. +| `ip -6 route` + +| Try pinging to the internal router interface of router1 (i.e., 2001:db8:0:1::1/64) +| `ping6 2001:db8:0:1::1/64` + +| If all goes well, ping6 should succeed which shows that vRouter is forwarding the IPv6 traffic of instances on the tenant-internal-network. + +| At this state, we can create a snapshot of the CentOSvRouter and use it in any other similar OpenStack setup. +| `nova image-create ` +| `nova image-list #You will find the snapshot you just created above.` + -- cgit 1.2.3-korg