The old Internet protocol version 4, or IPv4, has 4.3 billion addresses in it. That is an enormous number but there are an estimated 6 billion people in the world today so you can see why this number is not enough. As you may know, we are getting close to running out of addresses. That means for the Internet to continue to grow we need to do something else.

Internet Protocol version 6, or IPv6, has 340 trillion trillion trillion addresses. If you can wrap your thoughts around that number then you are truly brilliant. It is a way bigger number than even the national debt of the United States today. Smile 

Let us take a look at the size of the number of unique IPv6 addresses written out: 340,000,000,000,000,000,000,000,000,000,000,000,000. That is 340 followed by 36 zeroes. Even if we start giving out addresses to our appliances, our clothing, and whatever inventors come up with we should have enough unique addresses for a very very long time.

I am beginning to research what this means to those of us who manage networks? Stay tuned for what I find out…