# IPv6网络优化

## IPv6网络配置全指南

### 一、IPv6网络发展现状

1. ​**国内IPv6升级进程**
   * 运营商骨干网/城域网、云服务商、终端设备厂商全面支持IPv6
   * 当前运营商提供的IPv6线路类型：
     * 支持前缀授权（路由模式）
     * 不支持前缀授权（桥接模式）
2. ​**两种IPv6模式对比**

   | 模式类型    | 地址分配方式    | 网络架构要求         | 推荐程度  |
   | ------- | --------- | -------------- | ----- |
   | 支持前缀授权  | 用户自主分配地址  | 支持IPv6路由模式的路由器 | ★★★★☆ |
   | 不支持前缀授权 | 运营商直接分配地址 | 支持IPv6桥接模式的路由器 | ★★★☆☆ |

### 二、IPv6连通性排查流程

**基础检查步骤**

* [ ]  光猫/路由器已开启IPv6功能
* [ ]  防火墙处于关闭状态
* [ ]  获取的IPv6地址非`fe08`开头（内网地址无效）
* [ ]  优先使用设备直连拨号测试

### 三、附各型号光猫IPv6优化[​](https://help.niulinkcloud.com/smallbox/smallnethelp/ipv6_optimize.html#%E9%99%84%E5%BD%951-%E5%90%84%E5%9E%8B%E5%8F%B7%E5%85%89%E7%8C%ABipv6%E4%BC%98%E5%8C%96) <a href="#fu-lu-1-ge-xing-hao-guang-mao-ipv6-you-hua" id="fu-lu-1-ge-xing-hao-guang-mao-ipv6-you-hua"></a>

#### **移动光猫HG6543C5**[​](https://help.niulinkcloud.com/smallbox/smallnethelp/ipv6_optimize.html#%E7%A7%BB%E5%8A%A8%E5%85%89%E7%8C%ABhg6543c5) <a href="#yi-dong-guang-mao-hg6543c5" id="yi-dong-guang-mao-hg6543c5"></a>

网络——宽带设置——IP模式选IPv4\&IPv6

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%871_1705910261199.png" alt=""></div>

IPv6信息按照图中所示调整

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%872_1705910347511.png" alt=""></div>

PS：如果光猫有防火墙，请关闭防火墙或调整防火墙等级到最低的级别

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%873_1705910385205.png" alt=""></div>

拨号成功后即可看到WAN口获取到IPv6地址

PS：配置IPv6完成后可能要重启盒子的网络服务，或者直接重启盒子以重新获取一下IP

#### **移动家庭网关H3-2s**[​](https://help.niulinkcloud.com/smallbox/smallnethelp/ipv6_optimize.html#%E7%A7%BB%E5%8A%A8%E5%AE%B6%E5%BA%AD%E7%BD%91%E5%85%B3h3-2s) <a href="#yi-dong-jia-ting-wang-guan-h32s" id="yi-dong-jia-ting-wang-guan-h32s"></a>

参考如下配置

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%874_1705910612472.png" alt=""></div>

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%875_1705910640493.png" alt=""></div>

实例设备**LAN4为跑量设备，设置端口绑定**

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%876_1705910650238.png" alt=""></div>

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%877_1705910721309.png" alt=""></div>

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%878_1705910793762.png" alt=""></div>

#### **联通光猫wo-27S**[​](https://help.niulinkcloud.com/smallbox/smallnethelp/ipv6_optimize.html#%E8%81%94%E9%80%9A%E5%85%89%E7%8C%ABwo-27s) <a href="#lian-tong-guang-mao-wo27s" id="lian-tong-guang-mao-wo27s"></a>

参考如下配置

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%879_1705910866847.png" alt=""></div>

配置完成后会产生IPv6连接信息

**注意：如果光猫有防火墙，需要关闭 或 调整光猫防火墙阈值至最低！**

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%8710_1705910894390.png" alt=""></div>

#### **电信光猫TEWA-600AGM**[​](https://help.niulinkcloud.com/smallbox/smallnethelp/ipv6_optimize.html#%E7%94%B5%E4%BF%A1%E5%85%89%E7%8C%ABtewa-600agm) <a href="#dian-xin-guang-mao-tewa600agm" id="dian-xin-guang-mao-tewa600agm"></a>

参考如下配置

1. IP模式需要勾选"IPv4\&IPv6"，不能只勾选"IPv6"，不是所有网站都支持IPv6。否则会出现某些不支持IPv6网站打不开的情况；
2. 如果有分配VlanID，需务必输入，否则可能会出现无法拨号等问题；

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%8711_1705911066719.png" alt=""></div>

1. 切换页面【网络】-->【用户侧管理】-->【IPv6设置】，需参考选择对应的接口名称，与勾选"启用DHCPv6服务器"并保存

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%8712_1705911162031.png" alt=""></div>

**注意：如果光猫有防火墙，需要关闭 或 调整光猫防火墙阈值至最低！**

#### **天翼网关-EPON HN8145X6**[​](https://help.niulinkcloud.com/smallbox/smallnethelp/ipv6_optimize.html#%E5%A4%A9%E7%BF%BC%E7%BD%91%E5%85%B3-epon-hn8145x6) <a href="#tian-yi-wang-guan-eponhn8145x6" id="tian-yi-wang-guan-eponhn8145x6"></a>

参考如下配置

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%8713_1705911245143.png" alt=""></div>

不用使能NPTv6

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%8714_1705911274282.png" alt=""></div>

连接状态为已连接

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%8715_1705911311129.png" alt=""></div>

DNS来源可以使用家庭网关代理

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%8716_1705911347255.png" alt=""></div>

不要打开使能，否则需要手动控制转发，导致ipv6无法被外网访问

<div align="left"><img src="https://help.niulinkcloud.cn/img/smallbox/ipv6/%E5%9B%BE%E7%89%8717_1705911373184.png" alt=""></div>

端口过滤不用设置。


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