question archive Using 32-bit Internet addresses was originally thought to provide ample room for expansion, but that conjecture is not proving to be accurate
Using 32-bit Internet addresses was originally thought to provide ample room for expansion, but that conjecture is not proving to be accurate
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Using 32-bit Internet addresses was originally thought to provide ample room for expansion, but that conjecture is not proving to be accurate. IPv6 uses 128-bit addressing. Will that prove to be adequate? Justify your answer. (For example, you might compare the number of possible addresses to the population of the world.)
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Yes, it will prove to be adequate. In most areas even the least ISP gets a /32 out of 2000::/3. That gives a maximum of almost 225 = 536870912 ISPs. As a world population is around 8 billion that means 1 ISP is for 15 people.
Each of these ISPs can handle up to 216 = 65536 clients if they give each client a /48, or 224 = 16777216 clients if they give each client a /56.
Of course there are ISPs that get additional than a /32, but these ISPs will perhaps also have more than 15 clients.
