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mkopa/script.txt

Last active November 30, 2023 22:08
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PPP over Serial Port
Raw
script.txt
On client:
1.
add:
nameserver 8.8.8.8
nameserver 1.1.1.1
to /etc/resolv.conf
2.
sudo stty -F /dev/ttyUSB0 raw
sudo stty -F /dev/ttyUSB0 -a
sudo pppd -detach /dev/ttyUSB0 19200 10.0.5.2:10.0.5.1 noauth local debug dump defaultroute nocrtscts persist maxfail 0 holdoff 1
// raspberry pi disable wifi: $ sudo rfkill block wifi && sudo ip link set wlan0 down
sudo vim /etc/rc.local
echo "Starting pppd..."
sudo stty -F /dev/ttyUSB0 raw
sudo stty -F /dev/ttyUSB0 -a
sudo pppd -detach /dev/ttyUSB0 19200 10.0.5.2:10.0.5.1 noauth local debug dump defaultroute nocrtscts persist maxfail 0 holdoff 1
On Host:
sudo sysctl -w net.ipv4.ip_forward=1
sudo ip addr add 10.0.5.1/24 dev enp4s0
sudo iptables -A FORWARD -o enp4s0 -i ppp0 -s 10.0.5.0/24 -m conntrack --ctstate NEW -j ACCEPT
sudo iptables -A FORWARD -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
sudo iptables -t nat -F POSTROUTING
sudo iptables -t nat -A POSTROUTING -o enp4s0 -j MASQUERADE
sudo stty -F /dev/ttyUSB0 raw
sudo pppd /dev/ttyUSB0 19200 10.0.5.1:10.0.5.2 proxyarp local noauth debug nodetach dump nocrtscts passive persist maxfail 0 holdoff 1
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