How do you establish a reliable connection using Ethernet and IP protocols?

To establish a reliable connection using Ethernet and IP protocols, first, ensure that both devices are connected via Ethernet cables to the same network switch or router. Next, assign IP addresses to each device, either statically or dynamically via DHCP, ensuring they are in the same subnet. After that, use the internet Control Message Protocol (ICMP) to test connectivity with tools like ping, and finally, implement TCP (Transmission Control Protocol) for reliable data transmission, which includes error-checking and retransmission of lost packets.