适用环境

• 路由OpenWrt固件有IPV6模块
• 原生IPV6环境

方案

我采用的是6relayd，这也是相对方便的方案。

6relayd is a daemon for serving and relaying IPv6 management protocols to configure clients and downstream routers. 6relayd provides server services for RA, stateless and stateful DHCPv6, DHCPv6-PD and can be used to relay RA, DHCPv6 and NDP between routed (non-bridged) interfaces in case no delegated prefixes are provided by the upstream router.

当然还有其他的方案，如openwrt下的ipv6单一地址做网关（附mentohust、njitclient) 。

软件包准备

opkg intall (ipv6的各种内核模块)
opkg install 6relayd
opkg install odhcp6c(用于获取IPV6地址)

路由获取IPV6地址

默认的wan端口是获取IPV4地址的，要获取IPV6地址，我们需要新建一个接口"wan6"，协议为"DHCPv6 client"，包含以下接口为自定义接口"@wan"，或者直接在配置文件加入vi /etc/config/network:

config interface 'wan6'
        option proto 'dhcpv6'
        option ifname '@wan'

内网分配IPV6地址

编辑6relayd的配置文件vi /etc/config/6relayd,反注释或者加入配置:

config server relay
        option master   'wan'
        option network  'lan'
        option rd       'relay'
        option dhcpv6   'relay'
        option ndp      'relay'

然后 /etc/init.d/6relayd start 或者在luci web界面开启6relayd服务。