We need open the ipv4 forwarding on the host
sysctl -w net.ipv4.ip_forward = 1
Add follow lines into
/etc/rc.locat to set NAT table
iptables -F
iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -t nat -A POSTROUTING -o [Sharing interface name] -j MASQUERADE
Reboot the host device to enable the settings.Set the host device IP （如果是多网卡方式组建局域网，需将网关设置为连接外网的网卡的IP， 内网网卡仅仅作AP点用）as gateway on the associate deviceGoogle DNS server can be use Google free DNS 8.8.8.8 | 8.8.4.4 or OpenDNS 208.67.222.222
| 208.67.220.220 
