Centos

Centos配置DHCPv6服务(二)

Posted by FanHao on 2026-06-08

说明

彻底摒弃老旧dibbler构建的IPv6服务，使用更专业以及更现代kea构建dhcpv6服务；kea同时具备DHCPv4、DHCPv6服务，本次仅配置启用DHCPv6服务。

安装

Centos7.9

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[root@localhost /]# yum install kea

检查是否安装成功

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rpm -q kea

配置启用

以下配置仅包含IPv6的相关配置。

编辑DHCPv6主配置文件

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[root@localhost /]# vi  /etc/kea/kea-dhcp6.conf

配置文件内容为json格式，如下

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// 将初始kea-dhcp6.conf重命名为kea-dhcp6.conf.bak
// 新建kea-dhcpd.conf
{
"Dhcp6": {
"data-directory": "/var/lib/kea/",
"interfaces-config": {
        "interfaces": [ "ens37" ]
    },
    "lease-database": {
        "type": "memfile",
        "persist": true,
        "name": "/var/lib/kea/kea-lease6.csv"
    },
    "renew-timer": 1000,
    "rebind-timer": 2000,
    "preferred-lifetime": 3000,
    "valid-lifetime": 4000,
    "option-data": [
        {
            "name": "dns-servers",
            "data": "240c::6666, 2402:4e00::"
        }
    ],
    "subnet6": [
        {
            "subnet": "2001:db8:1::/64",
            "interface": "ens37",
            "pools": [
                {
                    "pool": "2001:db8:1::10 - 2001:db8:1::ffff"
                }
            ],
"pd-pools": [
{
    "prefix": "2001:db8:1:a000::",
    "prefix-len": 52,
    "delegated-len": 64
}
    ]
        }
    ],
    "loggers": [
        {
            "name": "kea-dhcp6",
            "output_options": [
                {
                    "output": "/var/log/kea-dhcp6.log"
                }
            ],
            "severity": "INFO",
    "debuglevel": 0
        }
    ]
}
}

启用IPv6地址转发功能

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vi /etc/sysctl.conf
# 添加如下配置
net.ipv6.conf.all.forwarding=1

启动DHCPv6服务

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[root@localhost /]# systemctl start kea-dhcp6

设置开机自启动

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[root@localhost /]# systemctl enable kea-dhcp6
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