OpenWrt广播DNS到客户端
Network -> Interfaces -> lan ->DHCP Server -> Advanced Settings -> DHCP-Options
设置 6,dns1,dns2
如下图
也可以直接编辑 /etc/config/dhcp
config dhcp 'lan'
list dhcp_option '6,119.29.29.29,223.5.5.5' #ipv4
option dns '2402:4e00:: 2400:3200::1' #ipv6