Zte F689 Bridge Mode Free

If true Bridge Mode isn't available, use IP Passthrough (DMZ). This isn't perfect (it still involves Double NAT), but it works for most users.

iptables -t nat -F ip link set eth0 down brctl addbr br0 brctl addif br0 eth0 ptm0 ip link set br0 up killall udhcpd Zte F689 Bridge Mode