.. http://creativecommons.org/licenses/by/4.0
.. (c) Bin Hu (AT&T) and Sridhar Gaddam (RedHat)
-=========================================
-Install OPNFV on IPv6-Only Infrastructure
-=========================================
+===================================================
+IPv6 Installation Procedure and Configuration Guide
+===================================================
-This section provides instructions to install OPNFV on IPv6-only Infrastructure. All underlay networks
-and API endpoints will be IPv6-only except:
+:Abstract:
-1. "admin" network in underlay/undercloud still has to be IPv4, due to lack of support of IPMI
- over IPv6 or PXE over IPv6.
-2. OVS VxLAN (or GRE) tunnel endpoint is still IPv4 only, although IPv6 traffic can be
- encapsulated within the tunnel.
-3. Metadata server is still IPv4 only.
+This document provides the users with:
-Except the limitations above, the use case scenario of the IPv6-only infrastructure includes:
+1. Installation Procedure to install OPNFV Colorado Release on IPv6-only Infrastructure
+2. Configuration Guide to set up a service VM as an IPv6 vRouter using OPNFV Colorado Release
-1. Support OPNFV deployment on an IPv6 only infrastructure.
-2. Horizon/ODL-DLUX access using IPv6 address from an external host.
-3. OpenStack API access using IPv6 addresses from various python-clients.
-4. Ability to create Neutron Routers, IPv6 subnets (e.g. SLAAC/DHCPv6-Stateful/
- DHCPv6-Stateless) to support North-South traffic.
-5. Inter VM communication (East-West routing) when VMs are spread
- across two compute nodes.
-6. VNC access into a VM using IPv6 addresses.
-
--------------------------------------------
-Install OPNFV in OpenStack-Only Environment
--------------------------------------------
-
-**Apex Installer**:
-
-.. code-block:: bash
-
- # HA, Virtual deployment in OpenStack-only environment
- ./opnfv-deploy -v -d /etc/opnfv-apex/os-nosdn-nofeature-ha.yaml \
- -n /etc/opnfv-apex/network_setting_v6.yaml
-
- # HA, Bare Metal deployment in OpenStack-only environment
- ./opnfv-deploy -d /etc/opnfv-apex/os-nosdn-nofeature-ha.yaml \
- -i <inventory file> -n /etc/opnfv-apex/network_setting_v6.yaml
-
- # Non-HA, Virtual deployment in OpenStack-only environment
- ./opnfv-deploy -v -d /etc/opnfv-apex/os-nosdn-nofeature-noha.yaml \
- -n /etc/opnfv-apex/network_setting_v6.yaml
-
- # Non-HA, Bare Metal deployment in OpenStack-only environment
- ./opnfv-deploy -d /etc/opnfv-apex/os-nosdn-nofeature-noha.yaml \
- -i <inventory file> -n /etc/opnfv-apex/network_setting_v6.yaml
-
- # Note:
- #
- # 1. Parameter ""-v" is mandatory for Virtual deployment
- # 2. Parameter "-i <inventory file>" is mandatory for Bare Metal deployment
- # 2.1 Refer to https://git.opnfv.org/cgit/apex/tree/config/inventory for examples of inventory file
- # 3. You can use "-n /etc/opnfv-apex/network_setting.yaml" for deployment in IPv4 infrastructure
-
-**Joid** Installer:
-
-.. code-block:: bash
-
- # HA deployment in OpenStack-only environment
- ./deploy.sh -o mitaka -s nosdn -t ha -l default -f ipv6
-
- # Non-HA deployment in OpenStack-only environment
- ./deploy.sh -o mitaka -s nosdn -t nonha -l default -f ipv6
-
-Please **NOTE** that:
-
-* You need to refer to **installer's documentation** for other necessary
- parameters applicable to your deployment.
-* You need to refer to **Release Notes** and **installer's documentation** if there is
- any issue in installation.
-
---------------------------------------------------
-Install OPNFV in OpenStack with ODL-L2 Environment
---------------------------------------------------
-
-**Apex Installer**:
-
-.. code-block:: bash
-
- # HA, Virtual deployment in OpenStack with Open Daylight L2-only environment
- ./opnfv-deploy -v -d /etc/opnfv-apex/os-odl_l2-nofeature-ha.yaml \
- -n /etc/opnfv-apex/network_setting_v6.yaml
-
- # HA, Bare Metal deployment in OpenStack with Open Daylight L2-only environment
- ./opnfv-deploy -d /etc/opnfv-apex/os-odl_l2-nofeature-ha.yaml \
- -i <inventory file> -n /etc/opnfv-apex/network_setting_v6.yaml
-
- # Non-HA deployment in OpenStack with Open Daylight L2-only environment
- # There is no settings file provided by default for odl_l2 non-HA deployment
- # You need to copy /etc/opnfv-apex/os-odl_l2-nofeature-ha.yaml to another file
- # e.g. /etc/opnfv-apex/os-odl_l2-nofeature-noha.yaml
- # and change the "ha_enabled" parameter to be "false", i.e.: "ha_enabled: false", and:
-
- # - For Non-HA, Virtual deployment
- ./opnfv-deploy -v -d /etc/opnfv-apex/os-odl_l2-nofeature-noha.yaml \
- -n /etc/opnfv-apex/network_setting_v6.yaml
-
- # - For Non-HA, Bare Metal deployment
- ./opnfv-deploy -d /etc/opnfv-apex/os-odl_l2-nofeature-noha.yaml \
- -i <inventory file> -n /etc/opnfv-apex/network_setting_v6.yaml
-
- # Note:
- #
- # 1. Parameter ""-v" is mandatory for Virtual deployment
- # 2. Parameter "-i <inventory file>" is mandatory for Bare Metal deployment
- # 2.1 Refer to https://git.opnfv.org/cgit/apex/tree/config/inventory for examples of inventory file
- # 3. You can use "-n /etc/opnfv-apex/network_setting.yaml" for deployment in IPv4 infrastructure
-
-**Joid** Installer:
-
-.. code-block:: bash
-
- # HA deployment in OpenStack with Open Daylight L2-only environment
- ./deploy.sh -o mitaka -s odl -t ha -l default -f ipv6
-
- # Non-HA deployment in OpenStack with Open Daylight L2-only environment
- ./deploy.sh -o mitaka -s odl -t nonha -l default -f ipv6
-
-Please **NOTE** that:
-
-* You need to refer to **installer's documentation** for other necessary
- parameters applicable to your deployment.
-* You need to refer to **Release Notes** and **installer's documentation** if there is
- any issue in installation.
-
--------------------
-Testing Methodology
--------------------
-
-There are 2 levels of testing to validate the deployment.
-
-++++++++++++++++
-Underlay Testing
-++++++++++++++++
-
-**Underlay** Testing is to validate that API endpoints are listening on IPv6 addresses.
-This can be as simple as validating Keystone service, and as complete as validating each
-API endpoint. It is important to reuse Tempest API testing.
-
-Please **Note** that, to the best of our knowledge, Tempest API testing does not validate
-API endpoints listening on IPv6 addresses. Thus Underlay Testing is postponed to future
-release until Tempest API testing is ready to validate API endpoints listening on IPv6 addresses.
-
-+++++++++++++++
-Overlay Testing
-+++++++++++++++
-
-**Overlay** Testing is to validate that IPv6 is supported in tenant networks, subnets and routers.
-Both Tempest API testing and Tempest Scenario testing are used in our Overlay Testing.
-
-Tempest API testing validates that the Neutron API supports the creation of IPv6 networks, subnets, routers, etc:
-
-.. code-block:: bash
-
- tempest.api.network.test_networks.BulkNetworkOpsIpV6Test.test_bulk_create_delete_network
- tempest.api.network.test_networks.BulkNetworkOpsIpV6Test.test_bulk_create_delete_port
- tempest.api.network.test_networks.BulkNetworkOpsIpV6Test.test_bulk_create_delete_subnet
- tempest.api.network.test_networks.NetworksIpV6Test.test_create_update_delete_network_subnet
- tempest.api.network.test_networks.NetworksIpV6Test.test_external_network_visibility
- tempest.api.network.test_networks.NetworksIpV6Test.test_list_networks
- tempest.api.network.test_networks.NetworksIpV6Test.test_list_subnets
- tempest.api.network.test_networks.NetworksIpV6Test.test_show_network
- tempest.api.network.test_networks.NetworksIpV6Test.test_show_subnet
- tempest.api.network.test_networks.NetworksIpV6TestAttrs.test_create_update_delete_network_subnet
- tempest.api.network.test_networks.NetworksIpV6TestAttrs.test_external_network_visibility
- tempest.api.network.test_networks.NetworksIpV6TestAttrs.test_list_networks
- tempest.api.network.test_networks.NetworksIpV6TestAttrs.test_list_subnets
- tempest.api.network.test_networks.NetworksIpV6TestAttrs.test_show_network
- tempest.api.network.test_networks.NetworksIpV6TestAttrs.test_show_subnet
- tempest.api.network.test_ports.PortsIpV6TestJSON.test_create_port_in_allowed_allocation_pools
- tempest.api.network.test_ports.PortsIpV6TestJSON.test_create_port_with_no_securitygroups
- tempest.api.network.test_ports.PortsIpV6TestJSON.test_create_update_delete_port
- tempest.api.network.test_ports.PortsIpV6TestJSON.test_list_ports
- tempest.api.network.test_ports.PortsIpV6TestJSON.test_show_port
- tempest.api.network.test_routers.RoutersIpV6Test.test_add_multiple_router_interfaces
- tempest.api.network.test_routers.RoutersIpV6Test.test_add_remove_router_interface_with_port_id
- tempest.api.network.test_routers.RoutersIpV6Test.test_add_remove_router_interface_with_subnet_id
- tempest.api.network.test_routers.RoutersIpV6Test.test_create_show_list_update_delete_router
- tempest.api.network.test_security_groups.SecGroupIPv6Test.test_create_list_update_show_delete_security_group
- tempest.api.network.test_security_groups.SecGroupIPv6Test.test_create_show_delete_security_group_rule
- tempest.api.network.test_security_groups.SecGroupIPv6Test.test_list_security_groups
-
-Tempest Scenario testing validates some specific overlay IPv6 scenarios
-(i.e. use cases) as follows:
-
-.. code-block:: bash
-
- tempest.scenario.test_network_v6.TestGettingAddress.test_dhcp6_stateless_from_os
- tempest.scenario.test_network_v6.TestGettingAddress.test_dualnet_dhcp6_stateless_from_os
- tempest.scenario.test_network_v6.TestGettingAddress.test_dualnet_multi_prefix_dhcpv6_stateless
- tempest.scenario.test_network_v6.TestGettingAddress.test_dualnet_multi_prefix_slaac
- tempest.scenario.test_network_v6.TestGettingAddress.test_dualnet_slaac_from_os
- tempest.scenario.test_network_v6.TestGettingAddress.test_multi_prefix_dhcpv6_stateless
- tempest.scenario.test_network_v6.TestGettingAddress.test_multi_prefix_slaac
- tempest.scenario.test_network_v6.TestGettingAddress.test_slaac_from_os
-
-The above Tempest API testing and Scenario testing are quite comprehensive to validate
-overlay IPv6 tenant networks. They are part of OpenStack default Smoke Tests,
-run in FuncTest and integrated into OPNFV's CI/CD environment.
+.. toctree::
+ :numbered:
+ :maxdepth: 4
+ ./installation.instruction.rst
+ ./feature.configuration.rst
.. http://creativecommons.org/licenses/by/4.0
.. (c) Bin Hu (AT&T) and Sridhar Gaddam (RedHat)
-===============
-IPv6 User Guide
-===============
+======================================
+Using IPv6 Feature of Colorado Release
+======================================
-:Abstract:
+This section provides the users with gap analysis regarding IPv6 feature requirements with
+OpenStack Mitaka Official Release and Open Daylight Boron Official Release. The gap analysis
+serves as feature specific user guides and references when as a user you may leverage the
+IPv6 feature in the platform and need to perform some IPv6 related operations.
-This IPv6 User Guide document provides the users with:
+***************************************
+IPv6 Gap Analysis with OpenStack Mitaka
+***************************************
-1. Instructions to set up a service VM as an IPv6 vRouter using OPNFV Colorado Release
-2. Top-down gap analysis regarding IPv6 feature requirements with OpenStack
- Mitaka Official Release and Open Daylight Boron Official Release.
+This section provides users with IPv6 gap analysis regarding feature requirement with
+OpenStack Neutron in Mitaka Official Release. The following table lists the use cases / feature
+requirements of VIM-agnostic IPv6 functionality, including infrastructure layer and VNF
+(VM) layer, and its gap analysis with OpenStack Neutron in Mitaka Official Release.
-.. toctree::
- :numbered:
- :maxdepth: 4
+.. table::
+ :class: longtable
- ./feature.configguide.rst
- ./feature.userguide.rst
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |Use Case / Requirement |Supported in Mitaka|Notes |
+ +===========================================================+===================+====================================================================+
+ |All topologies work in a multi-tenant environment |Yes |The IPv6 design is following the Neutron tenant networks model; |
+ | | |dnsmasq is being used inside DHCP network namespaces, while radvd |
+ | | |is being used inside Neutron routers namespaces to provide full |
+ | | |isolation between tenants. Tenant isolation can be based on VLANs, |
+ | | |GRE, or VXLAN encapsulation. In case of overlays, the transport |
+ | | |network (and VTEPs) must be IPv4 based as of today. |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |IPv6 VM to VM only |Yes |It is possible to assign IPv6-only addresses to VMs. Both switching |
+ | | |(within VMs on the same tenant network) as well as east/west routing|
+ | | |(between different networks of the same tenant) are supported. |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |IPv6 external L2 VLAN directly attached to a VM |Yes |IPv6 provider network model; RA messages from upstream (external) |
+ | | |router are forwarded into the VMs |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |IPv6 subnet routed via L3 agent to an external IPv6 network| |Configuration is enhanced since Kilo to allow easier setup of the |
+ | |1. Yes |upstream gateway, without the user being forced to create an IPv6 |
+ |1. Both VLAN and overlay (e.g. GRE, VXLAN) subnet attached | |subnet for the external network. |
+ | to VMs; | | |
+ |2. Must be able to support multiple L3 agents for a given |2. Yes | |
+ | external network to support scaling (neutron scheduler | | |
+ | to assign vRouters to the L3 agents) | | |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |Ability for a NIC to support both IPv4 and IPv6 (dual | |Dual-stack is supported in Neutron with the addition of |
+ |stack) address. | |``Multiple IPv6 Prefixes`` Blueprint |
+ | | | |
+ |1. VM with a single interface associated with a network, |1. Yes | |
+ | which is then associated with two subnets. | | |
+ |2. VM with two different interfaces associated with two |2. Yes | |
+ | different networks and two different subnets. | | |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |Support IPv6 Address assignment modes. |1. Yes | |
+ | | | |
+ |1. SLAAC |2. Yes | |
+ |2. DHCPv6 Stateless | | |
+ |3. DHCPv6 Stateful |3. Yes | |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |Ability to create a port on an IPv6 DHCPv6 Stateful subnet |Yes | |
+ |and assign a specific IPv6 address to the port and have it | | |
+ |taken out of the DHCP address pool. | | |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |Ability to create a port with fixed_ip for a |**No** |The following patch disables this operation: |
+ |SLAAC/DHCPv6-Stateless Subnet. | |https://review.openstack.org/#/c/129144/ |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |Support for private IPv6 to external IPv6 floating IP; |**Rejected** |Blueprint proposed in upstream and got rejected. General expectation|
+ |Ability to specify floating IPs via Neutron API (REST and | |is to avoid NAT with IPv6 by assigning GUA to tenant VMs. See |
+ |CLI) as well as via Horizon, including combination of | |https://review.openstack.org/#/c/139731/ for discussion. |
+ |IPv6/IPv4 and IPv4/IPv6 floating IPs if implemented. | | |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |Provide IPv6/IPv4 feature parity in support for |**To-Do** |The L3 configuration should be transparent for the SR-IOV |
+ |pass-through capabilities (e.g., SR-IOV). | |implementation. SR-IOV networking support introduced in Juno based |
+ | | |on the ``sriovnicswitch`` ML2 driver is expected to work with IPv4 |
+ | | |and IPv6 enabled VMs. We need to verify if it works or not. |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |Additional IPv6 extensions, for example: IPSEC, IPv6 |**No** |It does not appear to be considered yet (lack of clear requirements)|
+ |Anycast, Multicast | | |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |VM access to the meta-data server to obtain user data, SSH |**No** |This is currently not supported. Config-drive or dual-stack IPv4 / |
+ |keys, etc. using cloud-init with IPv6 only interfaces. | |IPv6 can be used as a workaround (so that the IPv4 network is used |
+ | | |to obtain connectivity with the metadata service) |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |Full support for IPv6 matching (i.e., IPv6, ICMPv6, TCP, |Yes | |
+ |UDP) in security groups. Ability to control and manage all | | |
+ |IPv6 security group capabilities via Neutron/Nova API (REST| | |
+ |and CLI) as well as via Horizon. | | |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |During network/subnet/router create, there should be an |Yes |Two new Subnet attributes were introduced to control IPv6 address |
+ |option to allow user to specify the type of address | |assignment options: |
+ |management they would like. This includes all options | | |
+ |including those low priority if implemented (e.g., toggle | |* ``ipv6-ra-mode``: to determine who sends Router Advertisements; |
+ |on/off router and address prefix advertisements); It must | | |
+ |be supported via Neutron API (REST and CLI) as well as via | |* ``ipv6-address-mode``: to determine how VM obtains IPv6 address, |
+ |Horizon | | default gateway, and/or optional information. |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |Security groups anti-spoofing: Prevent VM from using a |Yes | |
+ |source IPv6/MAC address which is not assigned to the VM | | |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |Protect tenant and provider network from rogue RAs |Yes |When using a tenant network, Neutron is going to automatically |
+ | | |handle the filter rules to allow connectivity of RAs to the VMs only|
+ | | |from the Neutron router port; with provider networks, users are |
+ | | |required to specify the LLA of the upstream router during the subnet|
+ | | |creation, or otherwise manually edit the security-groups rules to |
+ | | |allow incoming traffic from this specific address. |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |Support the ability to assign multiple IPv6 addresses to |Yes | |
+ |an interface; both for Neutron router interfaces and VM | | |
+ |interfaces. | | |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |Ability for a VM to support a mix of multiple IPv4 and IPv6|Yes | |
+ |networks, including multiples of the same type. | | |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |Support for IPv6 Prefix Delegation. |Yes |Partial support in Mitaka |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |Distributed Virtual Routing (DVR) support for IPv6 |**No** |Blueprint proposed upstream, pending discussion. |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |IPv6 First-Hop Security, IPv6 ND spoofing |Yes | |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+ |IPv6 support in Neutron Layer3 High Availability |Yes | |
+ |(keepalived+VRRP). | | |
+ +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
+
+******************************************
+IPv6 Gap Analysis with Open Daylight Boron
+******************************************
+
+This section provides users with IPv6 gap analysis regarding feature requirement with
+Open Daylight Boron Official Release. The following table lists the use cases / feature
+requirements of VIM-agnostic IPv6 functionality, including infrastructure layer and VNF
+(VM) layer, and its gap analysis with Open Daylight Boron Official Release.
+
+**Open Daylight Boron Status**
+
+There are 2 options in Open Daylight Boron to provide Virtualized Networks:
+
+1 ``Old Netvirt``: netvirt implementation used in Open Daylight Beryllium Release
+ identified by feature ``odl-ovsdb-openstack``
+
+2 ``New Netvirt``: netvirt implementation which will replace the Old Netvirt in the
+ future releases based on a more modular design. It is identified by feature
+ ``odl-netvirt-openstack``
+
+.. table::
+ :class: longtable
+
+ +--------------------------------------------------+---------------------------------------------+--------------------------------------------------------------+
+ |Use Case / Requirement | Supported in ODL Boron |Notes |
+ | +---------------------+-----------------------+ |
+ | | Old Netvirt | New Netvirt | |
+ | |(odl-ovsdb-openstack)|(odl-netvirt-openstack)| |
+ +==================================================+=====================+=======================+==============================================================+
+ |REST API support for IPv6 subnet creation in ODL |Yes |Yes |Yes, it is possible to create IPv6 subnets in ODL using |
+ | | | |Neutron REST API. |
+ | | | | |
+ | | | |For a network which has both IPv4 and IPv6 subnets, ODL |
+ | | | |mechanism driver will send the port information which includes|
+ | | | |IPv4/v6 addresses to ODL Neutron northbound API. When port |
+ | | | |information is queried it displays IPv4 and IPv6 addresses. |
+ +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+
+ |IPv6 Router support in ODL |**No** |**Partial** |IPv6 Router support is work in progress in ODL. |
+ | | | | |
+ |1. Communication between VMs on same compute node | | |Currently communication between VMs on the same network is |
+ |2. Communication between VMs on different compute | | |supported, and the support for the other modes is work in |
+ | nodes (east-west) | | |progress. |
+ |3. External routing (north-south) | | | |
+ +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+
+ |IPAM: Support for IPv6 Address assignment modes. |**No** |Yes |ODL IPv6 Router supports all the IPv6 Address assignment modes|
+ | | | |along with Neutron DHCP Agent. |
+ |1. SLAAC | | | |
+ |2. DHCPv6 Stateless | | | |
+ |3. DHCPv6 Stateful | | | |
+ +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+
+ |When using ODL for L2 forwarding/tunneling, it is |Yes |Yes | |
+ |compatible with IPv6. | | | |
+ +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+
+ |Full support for IPv6 matching (i.e. IPv6, ICMPv6,|**Partial** |**Partial** |Security Groups for IPv6 is a work in progress, and some |
+ |TCP, UDP) in security groups. Ability to control | | |partial support is available. |
+ |and manage all IPv6 security group capabilities | | | |
+ |via Neutron/Nova API (REST and CLI) as well as via| | | |
+ |Horizon | | | |
+ +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+
+ |Shared Networks support |Yes |Yes | |
+ +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+
+ |IPv6 external L2 VLAN directly attached to a VM. |**ToDo** |**ToDo** | |
+ +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+
+ |ODL on an IPv6 only Infrastructure. |**No** |**Work in Progress** |Deploying OpenStack with ODL on an IPv6 only infrastructure |
+ | | | |where the API endpoints are all IPv6 addresses. |
+ +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+
Code Review / ipv6.git / commitdiff