14.2. 使用 Stateful DHCPv6 创建 IPv6 子网
您可以在 Red Hat OpenStack (RHOSP)项目网络中创建 IPv6 子网。
例如，您可以在名为 QA 的项目中名为 database-servers 的网络中，使用 Stateful DHCPv6 创建一个 IPv6 子网。
流程
检索您要创建 IPv6 子网的项目的项目 ID。这些值在 OpenStack 部署之间是唯一的，因此您的值与本例中的值不同。
# openstack project list +----------------------------------+----------+ | ID | Name | +----------------------------------+----------+ | 25837c567ed5458fbb441d39862e1399 | QA | | f59f631a77264a8eb0defc898cb836af | admin | | 4e2e1951e70643b5af7ed52f3ff36539 | demo | | 8561dff8310e4cd8be4b6fd03dc8acf5 | services | +----------------------------------+----------+
检索 OpenStack Networking (neutron)中存在的所有网络列表，并记下您要托管 IPv6 子网的网络名称：
# openstack network list +--------------------------------------+------------------+-------------------------------------------------------------+ | id | name | subnets | +--------------------------------------+------------------+-------------------------------------------------------------+ | 8357062a-0dc2-4146-8a7f-d2575165e363 | private | c17f74c4-db41-4538-af40-48670069af70 10.0.0.0/24 | | 31d61f7d-287e-4ada-ac29-ed7017a54542 | public | 303ced03-6019-4e79-a21c-1942a460b920 172.24.4.224/28 | | 6aff6826-4278-4a35-b74d-b0ca0cbba340 | database-servers | | +--------------------------------------+------------------+-------------------------------------------------------------+
在
openstack subnet create命令中包含项目 ID、网络名称和 ipv6 地址模式：# openstack subnet create --ip-version 6 --ipv6-address-mode dhcpv6-stateful --project 25837c567ed5458fbb441d39862e1399 --network database-servers --subnet-range fdf8:f53b:82e4::53/125 subnet_name Created a new subnet: +-------------------+--------------------------------------------------------------+ | Field | Value | +-------------------+--------------------------------------------------------------+ | allocation_pools | {"start": "fdf8:f53b:82e4::52", "end": "fdf8:f53b:82e4::56"} | | cidr | fdf8:f53b:82e4::53/125 | | dns_nameservers | | | enable_dhcp | True | | gateway_ip | fdf8:f53b:82e4::51 | | host_routes | | | id | cdfc3398-997b-46eb-9db1-ebbd88f7de05 | | ip_version | 6 | | ipv6_address_mode | dhcpv6-stateful | | ipv6_ra_mode | | | name | | | network_id | 6aff6826-4278-4a35-b74d-b0ca0cbba340 | | tenant_id | 25837c567ed5458fbb441d39862e1399 | +-------------------+--------------------------------------------------------------+
验证步骤
通过查看网络列表来验证此配置。请注意，database-servers 的条目现在反映了新创建的 IPv6 子网：
# openstack network list +--------------------------------------+------------------+-------------------------------------------------------------+ | id | name | subnets | +--------------------------------------+------------------+-------------------------------------------------------------+ | 6aff6826-4278-4a35-b74d-b0ca0cbba340 | database-servers | cdfc3398-997b-46eb-9db1-ebbd88f7de05 fdf8:f53b:82e4::50/125 | | 8357062a-0dc2-4146-8a7f-d2575165e363 | private | c17f74c4-db41-4538-af40-48670069af70 10.0.0.0/24 | | 31d61f7d-287e-4ada-ac29-ed7017a54542 | public | 303ced03-6019-4e79-a21c-1942a460b920 172.24.4.224/28 | +--------------------------------------+------------------+-------------------------------------------------------------+
结果
因此，在添加到 database-servers 子网时，QA 项目创建的实例可能会接收 DHCP IPv6 地址：
# openstack server list +--------------------------------------+------------+--------+------------+-------------+-------------------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+------------+--------+------------+-------------+-------------------------------------+ | fad04b7a-75b5-4f96-aed9-b40654b56e03 | corp-vm-01 | ACTIVE | - | Running | database-servers=fdf8:f53b:82e4::52 | +--------------------------------------+------------+--------+------------+-------------+-------------------------------------+
