📚 Network Layer Protocols

📚 Network Layer Description

Network Address Translation - mostly to map local IPs to public ones, but sometimes used to map between two public or local networks.

📚 ARP

This article is about ARP protocol. It’s used to map IP addresses to physical (MAC) addresses.

📚 ICMP

ICMP protocol is needed for troubleshooting. For an TCP/IP stack here is what ICMP request looks like in a frame:

📚 IP

This article is about IP protocol (v4, v6 and IPX). IPv4 Number on top and along the left edge are bits (not bytes).