I have studied IPV4&IPV6 for a long time. At first, it was just for climbing the wall, and now it is.

For IPV6, see This perhaps This perhaps This I don't need to say much about the introduction of the article. Let me say I can't explain it clearly.

As for IPV4, you can check how many are left This perhaps This perhaps This as well as NRO Of special Introduction to the article.

Yes, the V4 address will be exhausted in three days. Of course, it has nothing to do with us. The resources are all in reserve. Anyway, we have always dialed up and assigned you a dynamic IP address when we surf the Internet, so we can surf the Internet enough.

However, upgrading to IPV6 is a matter of time, and what is the most lacking now? ISPs are also worried about them. At present, many hardware devices do not support IPV6. Updating these devices is a big, big, big thing.

If, in the future, after a full upgrade to IPV6, the resources are enough to allocate an IP to every grain of sand in the world, as it claims, can we get a fixed IP for broadband? If we can, then how cheap the legendary "independent IP" will be for our website owner, although the current IPV4 is not very expensive, only $1 a year, of course, this is the price in the United States. In fact, if you use VPS, you can now HE Apply for an IPV6 address, so that your website can be prepared in advance and people in the V6 network can access it. Of course, these are just my guesses.