[Lamin Beyai]

IPv4 has persisted for decades due to workarounds like NAT and CIDR and its deep integration into the global Internet infrastructure. However, its limited address space, lack of inherent security features, and inability to scale with the rapid growth of Internet-connected devices make it unsustainable in the long term. IPv6, with its enhanced security features and vastly larger address space, is the future-proof solution for the Internet.