what are IPV6 addresses?
while searching for a solution to why my iPad does not sink text messages with my iPhone I ran across some information in settings regarding IPV6 addresses. It shows I have 4. What are they and why would I have 4 addresses?
I very basic terms...
IPv4 are 32-bit addresses - and are very limited in quantity, in fact, so much so that the Internet Registries that issue blocks of addresses to commercial operators have run out!
This is issue was anticipated some years ago - and IPv6 128-bit addressing was ratified as the new IP standard for the Internet. We are currently going through a transition period when both addressing standards are in use.
IPv6 addresses are derived in a different way to IPv4 - and depending upon a number if factors (including your ISP and your home router configuration) it is not uncommon to see 2 or 4 IPv6 addresses for each device on your network - the reasons for which I’m not about to discuss in great depth here.
Suffice to say that, if you 4 IPv6 addresses, you are using both Link Local and Global addresses - and your DHCPv6 DHCP server is operating in Stateless mode.
If you want to know more, I suggest some strong coffee and some research into IPv6 standards; Wikipedia is a good place to start, but you’ll find some good guides if you go looking.
I hope this helps to answer your questions.
