China running out of IP addresses.

[patio]

From Neowin:

Chinese officials are calling for a mass migration to IPv6 after disclosing that they have only 830 days' worth of IPv4 resources left.

The disclosure was made by Li Kai, director of IP of the China Internet Network Information Center.

Li explained at a conference that, without a rapid changeover to IPv6, internet users in China will start having problems getting online.

"We held seminars almost everywhere to tell operators to apply for the remaining IP addresses as soon as possible, and to prepare the new IP addresses from IPv6 for internet users," he said, according to state media.

Around 80 per cent of China's IPv4 resources have now been taken up. The country's IP allocation recently exceeded Japan's, making it the second largest in the world behind the US.

[Carbon Dudeoxide]

Yeah, I heard about that.

Good thing I won't be affected, where I live.

[Dilbert]

I always wondered if it was possible to use up all possible combinations of IP address. Now I know.

[BC_Programmer]

Not sure if China would really be allowed to use all possible combinations- save some for others, after all.

Even so- IPv4 has  4,294,967,296 (256^4, if my combinatorics skills are still any good)- that's a lot of addresses, but we're definitely approaching that limit.

[patio]

And how many for IPv6 may i ask ? ?

Nice calculations but off a little...

[BC_Programmer]

And how many for IPv6 may i ask ? ?

Nice calculations but off a little...

IPv6, I assume uses 6 sets of 3 numbers each (just a random assumption..) so I'd imagine the total number of combinations would be 256^6...

for ipv4- I don't understand how my calc is off? ipv4 is 4 sets of 3 numbers each-

each number has 256 possible values, 0 to 255...

if you can state my flaws there, I'm all ears 

[Soviet_Genius]

ipconfig shows my IPv6 address as "Link-local IPv6 Address . . . . . : fe80::2140:8680:7898:f619%9" so can't there be way more IP addresses if there are letters and symbols int it?

From Wiki:

The very large IPv6 address space supports 2^128 (about 3.4×10^38) addresses, or approximately 5×10^28 (roughly 2^95) addresses for each of the roughly 6.5 billion (6.5×10^9) people alive today.[1] In a different perspective, this is 2^52 addresses for every observable star in the known universe[2] – more than ten billion billion billion times as many addresses as IPv4 (2^32) supported.

[BC_Programmer]

indeed soviet genius- you are correct. I know very little about ipv6 really, so I just assumed it was the same as ipv4, but with 6 entries.

ipv4 has 2^32

256=2^8

8*3 = 32...

So my math for ipv4 was correct there- just a different expression.

[socrates]

indeed soviet genius- you are correct. I know very little about ipv6 really, so I just assumed it was the same as ipv4, but with 6 entries.

ipv4 has 2^32

256=2^8

8*3 = 32...

So my math for ipv4 was correct there- just a different expression.

I believe the eye roll was meant to indicate he was simply joking.  I could be wrong though