why is IPv6 not so widespread? also what makes IPv6 great?
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IPv6 uses larger address space so there’s approximately one metric shit ton of more addresses to use. We have run out of available IPv4 addresses long ago, there’s A LOT more network connected devices on the planet than there are IPv4 addresses that can be given out. Though IPv6 solves this problem, it’s not so widespread because so far “patching up” IPv4 networks/systems and working around the shortage of IP addresses using a bunch of tricks has been cheaper than just switching everything over to IPv6.
IPv6 also has some built-in features that makes it easier, faster and cheaper to route packets to and from their intended destinations. It does away with some of the network processing steps that you have to use to get information from one end device to another using v4.
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