IP table persistence

[needlestack]

From @promiseowolabi of the rachel-chip project

I also noticed that the "iptables" are not persistent after rebooting. Made some changes to the /etc/rc.local command.
sudo("sh -c 'echo ifconfig wlan1 10.10.10.10 >> /etc/rc.local; echo service udhcpd restart >> /etc/rc.local; echo "iptables-restore < /etc/iptables.ipv4.nat" >> /etc/rc.local'") or die("Unable to setup udhcpd reset at boot.")

Look into this whether this is a RPi issue as well