diff options
Diffstat (limited to 'vrouter')
| -rw-r--r-- | vrouter/Service_VM_as_vRouter.txt | 44 | ||||
| -rw-r--r-- | vrouter/setup_ipv6_vrouter.txt | 122 | ||||
| -rw-r--r-- | vrouter/setup_service_vm.txt | 198 |
3 files changed, 364 insertions, 0 deletions
diff --git a/vrouter/Service_VM_as_vRouter.txt b/vrouter/Service_VM_as_vRouter.txt new file mode 100644 index 0000000..8592323 --- /dev/null +++ b/vrouter/Service_VM_as_vRouter.txt @@ -0,0 +1,44 @@ +==================================
+Exercising Service VM as a vRouter
+==================================
+
+There are 3 steps to set up a service VM as a vRouter:
+
+- Step 1: `Get a service VM running`_
+
+- Step 2: `Handling Neutron Security Group Feature`_
+
+- Step 3: `Set up an IPv6 vRouter on the Service VM`_
+
+***************************
+_`Get a Service VM Running`
+***************************
+
+Please click `Set up Service VM`_ page for instructions to get a service VM running.
+
+.. _`Set up Service VM`: ./setup_service_vm.html
+
+******************************************
+_`Handling Neutron Security Group Feature`
+******************************************
+
+------------------------------
+Disable Security Group Feature
+------------------------------
+
+If Open Stack is integrated and running with Open Daylight, we need to completely disable Security Group feature in Open Stack because Open Daylight doesn’t support it.
+
+----------------------------------------------------------
+Use Neutron ML2 Port Security Extension (Kilo and Liberty)
+----------------------------------------------------------
+
+For Open Stack Kilo or Liberty with ML2 OVS only (without Open Daylight), we need to use Port Security Extension of Neutron and disable Anti-spoofing Rule on the service VM.
+
+*******************************************
+_`Set up an IPv6 vRouter on the Service VM`
+*******************************************
+
+Please click `Set up IPv6 vRouter`_ page for instructions to set up an IPv6 vRouter on a Service VM.
+
+.. _`Set up IPv6 vRouter`: ./setup_ipv6_vrouter.html
+
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 <flat/vlan> --provider:physical_network <physical-network> --provider:segmentation_id <segmentation-id-if-vlan> --router:external ext-net`
+| # Configure ipv6_gateway=<LLA-of-upstream-router> 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 <router2-id> <ipv4-int-subnet-id>`
+
+| 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 <Centos7-image-id> –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 <router1-namespace> bash`
+| `ssh -i ~/vRouterKey centos@<ip-address-of-the-image>`
+
+| 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 <Cirros-image-id> --flavor m1.tiny --nic net-id=<tenant-internal-network-id> VM1`
+| `nova boot --image <Cirros-image-id> --flavor m1.tiny --nic net-id=<tenant-internal-network-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 <router2-namespace> bash`
+| `ssh cirros@<ip-address-of-the-image>`
+
+| 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 <CentOSvRouter-id> <Snapshot-name>`
+| `nova image-list #You will find the snapshot you just created above.`
+
diff --git a/vrouter/setup_service_vm.txt b/vrouter/setup_service_vm.txt new file mode 100644 index 0000000..a9c0a87 --- /dev/null +++ b/vrouter/setup_service_vm.txt @@ -0,0 +1,198 @@ +================================================
+Set up a Service VM Running as a vRouter (SLAAC)
+================================================
+
+| # Current network setup for IPv6 router VM on local virtualbox setup
+| # /etc/sysconfig/network-scripts/ifcfg-enp0s3
+| # Network interface enp0s3 is IPv4 for public internet access
+| TYPE="Ethernet"
+| BOOTPROTO="dhcp"
+| DEFROUTE="yes"
+| PEERDNS="yes"
+| PEERROUTES="yes"
+| IPV4_FAILURE_FATAL="no"
+| IPV6INIT="yes"
+| IPV6_AUTOCONF="yes"
+| IPV6_DEFROUTE="yes"
+| IPV6_PEERDNS="yes"
+| IPV6_PEERROUTES="yes"
+| IPV6_FAILURE_FATAL="no"
+| NAME="enp0s3"
+| UUID="32bad876-680a-4f78-a364-726eae21bfcf"
+| DEVICE="enp0s3"
+| ONBOOT="yes"
+
+| # /etc/sysconfig/network-scripts/ifcfg-enp0s8
+| # Network interface enp0s8 is IPv6 internal interface to provide IPv6 to internal hosts
+| BOOTPROTO=static
+| IPV6INIT=yes
+| IPV6ADDR="2001:db8:0:2::1/64"
+| NAME=enp0s8
+| UUID=e931a806-2f76-425d-b035-d37813b81df5
+| DEVICE=enp0s8
+| ONBOOT=yes
+| NM_CONTROLLED=no
+
+| # Disable NetworkManager
+| systemctl disable NetworkManager
+
+| # Install dhcp.x86_64, dhcp-common.x86_64, radvd.x86_64 if not already installed
+| yum install dhcp-common
+| yum install dhcp
+| yum install radvd
+
+| # /etc/sysctl.conf Set sysctl to enable IPv6 forwarding
+| net.ipv6.conf.all.forwarding=1
+| net.ipv6.conf.enp0s3.accept_ra=2
+| net.ipv6.conf.enp0s3.accept_ra_defrtr=1
+| net.ipv6.conf.enp0s3.router_solicitations=1
+
+| # /etc/radvd.conf
+| interface enp0s8
+| {
+| # This is the primary "on switch" for RADVD
+| AdvSendAdvert on;
+| #
+| # These settings determine how often advertisements will be sent every X-Y.
+| # X and Y are in seconds.
+| # With these settings you will be sending a advert every 60 seconds
+| #
+| MinRtrAdvInterval 60;
+| MaxRtrAdvInterval 180;
+| #
+| # Disable Mobile IPv6 support
+| #
+| AdvHomeAgentFlag off;
+| #
+| # Here we set our managed flags
+| #
+| AdvManagedFlag on;
+| AdvOtherConfigFlag on;
+| #
+| # Enter our IPv6 prefix and CIDR
+| #
+| prefix 2001:db8:0:2::/64
+| {
+| AdvOnLink on;
+| # On link tells the host that the default router is on the same "link" as it is
+| AdvAutonomous on;
+| AdvRouterAddr off;
+| };
+| };
+
+# Enable radvd service
+systemctl enable radvd
+
+# In /etc/sysconfig/network add
+IPV6FORWARDING=yes
+
+=================================================================
+Set up a Service VM Running as a vRouter (DHCPv6 Stateful Server)
+=================================================================
+
+| # Current network setup for IPv6 router VM on local virtualbox setup
+| # /etc/sysconfig/network-scripts/ifcfg-enp0s3
+| # Network interface enp0s3 is IPv4 for public internet access
+| TYPE="Ethernet"
+| BOOTPROTO="dhcp"
+| DEFROUTE="yes"
+| PEERDNS="yes"
+| PEERROUTES="yes"
+| IPV4_FAILURE_FATAL="no"
+| IPV6INIT="yes"
+| IPV6_AUTOCONF="yes"
+| IPV6_DEFROUTE="yes"
+| IPV6_PEERDNS="yes"
+| IPV6_PEERROUTES="yes"
+| IPV6_FAILURE_FATAL="no"
+| NAME="enp0s3"
+| UUID="32bad876-680a-4f78-a364-726eae21bfcf"
+| DEVICE="enp0s3"
+| ONBOOT="yes"
+
+| # /etc/sysconfig/network-scripts/ifcfg-enp0s8
+| # Network interface enp0s8 is IPv6 internal interface to provide IPv6 to internal hosts
+| BOOTPROTO=static
+| IPV6INIT=yes
+| IPV6ADDR="2001:db8:0:2::1/64"
+| NAME=enp0s8
+| UUID=e931a806-2f76-425d-b035-d37813b81df5
+| DEVICE=enp0s8
+| ONBOOT=yes
+| NM_CONTROLLED=no
+
+| # Disable NetworkManager
+| systemctl disable NetworkManager
+
+| # Install dhcp.x86_64, dhcp-common.x86_64, radvd.x86_64 if not already installed
+| yum install dhcp-common
+| yum install dhcp
+| yum install radvd
+
+| # /etc/sysctl.conf Set sysctl to enable IPv6 forwarding
+| net.ipv6.conf.all.forwarding=1
+| net.ipv6.conf.enp0s3.accept_ra=2
+| net.ipv6.conf.enp0s3.accept_ra_defrtr=1
+| net.ipv6.conf.enp0s3.router_solicitations=1
+
+| # /etc/dhcp/dhcpd6.conf
+| # DHCP for IPv6 Server Configuration file.
+
+| # Enable RFC 5007 support (same than for DHCPv4)
+ allow leasequery;
+
+| # IPv6 address valid lifetime
+| # (at the end the address is no longer usable by the client)
+| # (set to 30 days, the usual IPv6 default)
+| default-lease-time 2592000;
+
+| # IPv6 address preferred lifetime
+| # (at the end the address is deprecated, i.e., the client should use
+| # other addresses for new connections)
+| # (set to 7 days, the usual IPv6 default)
+| preferred-lifetime 604800;
+
+| # T1, the delay before Renew
+| # (default is 1/2 preferred lifetime)
+| # (set to 1 hour)
+| option dhcp-renewal-time 3600;
+
+| # T2, the delay before Rebind (if Renews failed)
+| # (default is 3/4 preferred lifetime)
+| # (set to 2 hours)
+| option dhcp-rebinding-time 7200;
+
+| # The path of the lease file
+| dhcpv6-lease-file-name "/var/lib/dhcpd/dhcpd6.leases";
+
+| # Set preference to 255 (maximum) in order to avoid waiting for
+| # additional servers when there is only one
+| option dhcp6.preference 255;
+
+| # Server side command to enable rapid-commit (2 packet exchange)
+| option dhcp6.rapid-commit;
+
+| # The delay before information-request refresh
+| # (minimum is 10 minutes, maximum one day, default is to not refresh)
+| # (set to 6 hours)
+ option dhcp6.info-refresh-time 21600;
+
+| # Set this to `interim` when doing ddns updates
+| ddns-update-style interim;
+|
+| subnet6 2001:db8:0:2::/64 {
+| option dhcp6.name-servers 2001:db8:0:2::1;
+| option dhcp6.domain-search "opnfv.local";
+| ddns-hostname = concat(binary-to-ascii(10, 8, "-", leased-address), ".wired");
+| ddns-domainname = "opnfv.local";
+| # Our address range 1000 through 1fff
+| range6 2001:db8:0:2::1000 2001:db8:0:2::1fff;
+| }
+|
+| # In /etc/sysconfig/network add
+| IPV6FORWARDING=yes
+
+For reference, refer to `How to set up RADVd DHCPv6 and DNS on CentOS 6`_.
+
+.. _`How to set up RADVd DHCPv6 and DNS on CentOS 6`: http://www.percula.info/archives/196
+
|