Everything posted by Lutefisky
In addition to these articles: sudo nano /etc/sysctl.conf - Find the line net.ipv4.ip_forward=1 and remove the # symbol at the start of the line. sudo iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE - Do after every reboot of pi, or make a script that does this so you don't have to. sudo systemctl restart rpippp.service - Use this to get the service restarted if it’s not working, this is your friend. Also, keep an eye out for the use of "ttyUSB0" and "eth0" throughout the setup, there are some mistakes in the articles where they don't stay consistent.
MrGasS27 i just spent many many hours over many days trying to get somewhere with my Pi3 and my Classic II. I finally had some luck with the following posts. https://jeffhacksthings.wordpress.com/2017/05/14/raspberry-pi-ppp-serial-router/ https://www.raspberrypi.org/forums/viewtopic.php?t=149927 But even then I struggled a fair bit. Good luck.
Hey jamesmilne, I got further with your setup than I have with all the others I've tried. Would it be possible to show me how you set up your iptables forwarding (and might as well show the work on the IPv4 packet forwarding, although I think I've go that already). Thanks for your time and effort...