I am attempting to use my pi to share an internet connection on wifi with the ethernet port. I am able to get it to work by running these commands in terminal:
sudo service dhcpcd restart sudo sh -c "echo 1 > /proc/sys/net/ipv4/ip_forward" sudo iptables -t nat -A POSTROUTING -o wlan1 -j MASQUERADE sudo iptables -A FORWARD -i wlan1 -o eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT sudo iptables -A FORWARD -i eth0 -o wlan1 -j ACCEPT sudo service dnsmasq start
sudo service dhcpcd restart
sudo sh -c "echo 1 > /proc/sys/net/ipv4/ip_forward"
sudo iptables -t nat -A POSTROUTING -o wlan1 -j MASQUERADE
sudo iptables -A FORWARD -i wlan1 -o eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT
sudo iptables -A FORWARD -i eth0 -o wlan1 -j ACCEPT
sudo service dnsmasq start
That part I have figured out. What I have not figured out is how to run these commands on restart of the pi. I have tried putting them in the rc.local file as some online suggestions but does not work on boot up. These commands do run on starting a new terminal server session.
I have tried the ideas on this page, https://www.dexterindustries.com/howto/run-a-program-on-your-raspberry-pi-at-startup/ and https://raspberrytips.com/autostart-a-program-on-boot/ but have not been successful. Some suggestion refer to running a program or a script file or a service. I do not know how to take these commands and turn them into a script file, program or service.
I know the code does what I want it to. You help to get it running on boot up would be a big help. thanks
