IPv4 vs IPv6: What’s the Difference and Why It Matters
IPv4 gives the internet about 4.3 billion addresses. That pool was exhausted years ago. IPv6 expands it to 340 undecillion addresses, but it has not replaced IPv4. Production systems need to understand both. The difference between IPv4 and IPv6 is mostly address space and packet design. For application code, the practical difference is simpler: an […]