IPv6 compression rules describe several shorthands that can be used to make common IPv6 addresses more understandable. One is that while computers have no difficulty handling 128-bit numbers, humans tend to find them awkward and confusing to read and work with.įortunately, the scientists who first defined IPv6 described a couple of notation techniques to make these large addresses easier to handle.
That said, there are also some drawbacks to quadrupling the size of IP addresses.
These larger addresses also brought with them flexibility that has enabled other important features, such as automatic device autoconfiguration. By increasing IP addresses from 32 to 128 bits, we ensured that we will probably never again run out of IP addresses. The primary reason why the internet world moved from IPv4 to IPv6 was to deal with the looming exhaustion of the relatively small 32-bit IPv4 address space.
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