IPv4 (Internet Protocol version 4) and IPv6 (Internet Protocol version 6) are standards for identifying and addressing devices on a computer network. IPv4 uses a 32-bit address scheme, allowing for approximately 4.3 billion unique addresses, while IPv6 employs a 128-bit address scheme, providing significantly more address space to accommodate the growing number of internet-connected devices. IPv6 offers benefits such as improved address allocation, enhanced security, and support for new technologies, but both IPv4 and IPv6 are used concurrently in modern networks, with IPv6 gradually replacing IPv4 to address IPv4 address exhaustion issues.
