Linux Routing Instructions:
# On server
echo 1 > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A POSTROUTING -s 10.0.0.0/24 -j MASQUERADE
# On client (optional, for full internet routing)
ip route add default via 10.0.0.1 dev tun0
Execution:
Run server first: sudo python3 tun_server.py
Run client: sudo python3 tun_client.py
Notes:
Requires root/sudo
No encryption (raw tunnel)
Basic packet forwarding
Replace SERVER_IP with actual server IP
Error handling minimalistic for clarity