The Internet Protocol (IP) is the fundamental protocol that enables end-to-end communication between hosts on the Internet. Living in the Network Layer of the OSI model, IP is able to reach the intended host by simply using the destination IP address and the routing protocols that have been configured on… IPv4 vs IPv6 : The key difference between an ipv4 and ipv6 is that IPv4 is the fourth version of the Internet Protocol (IP), and IPv6 is the most recent and more advanced version. IPv4 vs IPv6 : Explore the critical differences between IPv4 and IPv6 , including security, address size, and routing. Know which one fits your network needs. What is the difference between ipv4 and ipv6 ? We examine advantages, challenges, and future implications of each address protocol