A detailed guide explains how to build a TCP/IP stack from scratch, focusing on implementing Ethernet and ARP protocols in userspace Linux. The implementation uses TUN/TAP devices for intercepting network traffic and demonstrates successful ARP request handling, serving as an educational resource for deep network programming.

https://www.saminiir.com/lets-code-tcp-ip-stack-1-ethernet-arp/

#networking #tcp/ip #linux #protocolimplementation #systemprogramming